# Best Email Anti-spam Software

  *By [Lauren Worth](https://research.g2.com/insights/author/lauren-worth)*

   Email anti-spam technology is used to prevent malicious content from being delivered via email. These tools scan email messages, content, and attachments for potential threats and then filter or block suspicious messages from being delivered. Administrators can whitelist approved content or senders while also blacklisting or blocking communications from suspicious parties.

Companies use email anti-spam tools to prevent their employees from being misled through phishing attacks or compromising local networks when downloading malware. They also prevent employees from delivering information to misidentified users, saving the business from potential breaches.

All [secure email gateway software](https://www.g2.com/categories/secure-email-gateway) possesses anti-spam or email filtering capabilities, but those tools also have additional features for comprehensive spam filtering, email encryption, and information archiving.

To qualify for inclusion in the Email Anti-Spam category, a product must:

- Filter email content for malware or viruses
- Identify mislabeled senders or potential phishing attempts
- Provide blacklisting or blocking capabilities to restrict communication with suspicious parties




  
## How Many Email Anti-spam Software Products Does G2 Track?
**Total Products under this Category:** 120

### Category Stats (Jun 2026)
- **Average Rating**: 4.46/5 The average rating of products in this category, based on all submitted ratings
- **New Reviews This Quarter**: 70
- **Buyer Segments**: Small-Business 49% │ Mid-Market 48% │ Enterprise 4% Represents the distribution of reviewers across all products in this category.
- **Top Trending Product**: Heimdal (+1.66%) - Among all products in this category, Heimdal recorded the largest rating increase compared to last month
*Last updated: June 04, 2026*

  
## How Does G2 Rank Email Anti-spam Software Products?

**Why You Can Trust G2's Software Rankings:**

- 30 Analysts and Data Experts
- 5,200+ Authentic Reviews
- 120+ Products
- Unbiased Rankings

G2's software rankings are built on verified user reviews, rigorous moderation, and a consistent research methodology maintained by a team of analysts and data experts. Each product is measured using the same transparent criteria, with no paid placement or vendor influence. While reviews reflect real user experiences, which can be subjective, they offer valuable insight into how software performs in the hands of professionals. Together, these inputs power the G2 Score, a standardized way to compare tools within every category.

  
## Which Email Anti-spam Software Is Best for Your Use Case?

- **Leader:** [Proofpoint Core Email Protection](https://www.g2.com/products/proofpoint-core-email-protection/reviews)
- **Highest Performer:** [Libraesva Email Security](https://www.g2.com/products/libraesva-email-security/reviews)
- **Easiest to Use:** [Libraesva Email Security](https://www.g2.com/products/libraesva-email-security/reviews)
- **Top Trending:** [Sublime Email Security Platform](https://www.g2.com/products/sublime-email-security-platform/reviews)
- **Best Free Software:** [Proofpoint Core Email Protection](https://www.g2.com/products/proofpoint-core-email-protection/reviews)

  
---

**Sponsored**

### IRONSCALES

IRONSCALES is a cloud-native email security platform that helps enterprises and MSPs close gaps with mailbox-level detection, autonomous remediation, and built-in user training. It combines AI and human insights that continuously learn from user behavior, message context, and analyst feedback to identify advanced threats like BEC, account takeovers, impersonation, and other advanced phishing attacks. IRONSCALES is headquartered in Atlanta, Georgia and is proud to serve more than 17,000 customers globally. IRONSCALES leverages adaptive AI and its Agentic AI engine, Themis, to drive autonomous, mailbox-level remediation with customizable automation. Smart clustering, context-driven decisioning, and user-reported inputs enable Themis to remediate threats in real time while preserving analyst oversight and control. Designed for rapid deployment via API, IRONSCALES integrates with existing security stacks without requiring MX record changes. To reduce risk, improve SOC efficiency, and support a proactive security culture, its comprehensive capabilities also include: - Phishing Simulations - Security Awareness Training - DMARC management - Deepfake Live Protection - Generative AI tools



[Visit website](https://www.g2.com/external_clickthroughs/record?secure%5Bad_program%5D=ppc&secure%5Bad_slot%5D=category_product_list&secure%5Bcategory_id%5D=1628&secure%5Bdisplayable_resource_id%5D=1628&secure%5Bdisplayable_resource_type%5D=Category&secure%5Bmedium%5D=sponsored&secure%5Bplacement_reason%5D=page_category&secure%5Bplacement_resource_ids%5D%5B%5D=1628&secure%5Bprioritized%5D=false&secure%5Bproduct_id%5D=127324&secure%5Bresource_id%5D=1628&secure%5Bresource_type%5D=Category&secure%5Bsource_type%5D=category_page&secure%5Bsource_url%5D=https%3A%2F%2Fwww.g2.com%2Fcategories%2Femail-anti-spam%2Fenterprise&secure%5Btoken%5D=d657f868769144fd0c19dda0c58192abf36d931f5360cae704d2115ef2277446&secure%5Burl%5D=https%3A%2F%2Fsecure.ironscales.com%2Fdemo%3Futm_source%3Dg2%26utm_medium%3Daffiliate%26utm_campaign%3Dg2-ads&secure%5Burl_type%5D=book_demo)

---

  ## What Are the Top-Rated Email Anti-spam Software Products in 2026?
### 1. [Proofpoint Core Email Protection](https://www.g2.com/products/proofpoint-core-email-protection/reviews)
  Proofpoint’s Core Email Protection (CEP) stops 99.99% of all email threats before they become compromises. It stops the broadest range of email cyberattacks, spam and graymail. For security analysts, it provides integrated search and alert-based workflows, automatically remediates user reported emails, and coaches users in-the-moment. Core Email Protection leverages Nexus language models, relationship graphs, machine learning and computer vision to stop advanced email threats. It’s powered by unparallelled email threat data from over 3 trillion emails scanned per year, to automatically stop threats like BEC, account takeovers, QR code phishing, impersonations, and lateral phishing. Customers choose how to deploy Core Email Protection, with SEG and API options available. SEG provides the highest security via defense in depth, with pre-delivery, post-delivery, and click time protection. API is a faster deployment, and augments M365 with the same detection engine to block threats, spam, and graymail.


  **Average Rating:** 4.6/5.0
  **Total Reviews:** 572
**How Do G2 Users Rate Proofpoint Core Email Protection?**

- **Has the product been a good partner in doing business?:** 9.2/10 (Category avg: 9.1/10)
- **Quality of Support:** 8.8/10 (Category avg: 9.0/10)
- **Ease of Admin:** 8.5/10 (Category avg: 8.9/10)
- **Ease of Use:** 8.5/10 (Category avg: 8.9/10)

**Who Is the Company Behind Proofpoint Core Email Protection?**

- **Seller:** [Proofpoint](https://www.g2.com/sellers/proofpoint)
- **Company Website:** https://www.proofpoint.com/us
- **Year Founded:** 2002
- **HQ Location:** Sunnyvale, CA
- **Twitter:** @proofpoint (31,161 Twitter followers)
- **LinkedIn® Page:** https://www.linkedin.com/company/proofpoint (5,146 employees on LinkedIn®)

**Who Uses This Product?**
  - **Who Uses This:** Information Security Analyst, IT Security Engineer
  - **Top Industries:** Financial Services, Hospital & Health Care
  - **Company Size:** 66% Enterprise, 30% Mid-Market


#### What Are Proofpoint Core Email Protection's Pros and Cons?

**Pros:**

- Protection (21 reviews)
- Email Security (19 reviews)
- Effective (15 reviews)
- Security (15 reviews)
- Ease of Use (12 reviews)

**Cons:**

- UX Improvement (16 reviews)
- Configuration Difficulties (10 reviews)
- Email Issues (7 reviews)
- False Positives (6 reviews)
- Missing Features (6 reviews)

### 2. [Check Point Harmony Email & Collaboration](https://www.g2.com/products/check-point-harmony-email-collaboration/reviews)
  Check Point Harmony Email & Collaboration, protects enterprise data by preventing targeted attacks on SaaS applications and cloud-based email.


  **Average Rating:** 4.6/5.0
  **Total Reviews:** 464
**How Do G2 Users Rate Check Point Harmony Email & Collaboration?**

- **Has the product been a good partner in doing business?:** 9.3/10 (Category avg: 9.1/10)
- **Quality of Support:** 9.1/10 (Category avg: 9.0/10)
- **Ease of Admin:** 9.3/10 (Category avg: 8.9/10)
- **Ease of Use:** 9.1/10 (Category avg: 8.9/10)

**Who Is the Company Behind Check Point Harmony Email & Collaboration?**

- **Seller:** [Check Point Software Technologies](https://www.g2.com/sellers/check-point-software-technologies)
- **Year Founded:** 1993
- **HQ Location:** Redwood City, CA
- **Twitter:** @CheckPointSW (70,970 Twitter followers)
- **LinkedIn® Page:** https://www.linkedin.com/company/check-point-software-technologies/ (8,554 employees on LinkedIn®)
- **Ownership:** NASDAQ:CHKP

**Who Uses This Product?**
  - **Who Uses This:** IT Manager, Systems Administrator
  - **Top Industries:** Information Technology and Services, Computer & Network Security
  - **Company Size:** 59% Mid-Market, 24% Enterprise


#### What Are Check Point Harmony Email & Collaboration's Pros and Cons?

**Pros:**

- Email Security (94 reviews)
- Security (83 reviews)
- Protection (74 reviews)
- Ease of Use (50 reviews)
- Phishing Protection (45 reviews)

**Cons:**

- False Positives (29 reviews)
- Complexity (23 reviews)
- Complex Setup (22 reviews)
- Limited Features (18 reviews)
- Configuration Difficulties (17 reviews)

### 3. [Microsoft Defender for Office 365](https://www.g2.com/products/microsoft-microsoft-defender-for-office-365/reviews)
  Microsoft Defender for Office 365 is a comprehensive security solution designed to protect organizations from advanced threats targeting email and collaboration tools within the Microsoft 365 environment. It offers robust protection against phishing, malware, and business email compromise, ensuring secure communication and collaboration across platforms like Exchange Online, Microsoft Teams, SharePoint, and OneDrive. Key Features and Functionality: - Safe Attachments: Scans email attachments in a secure environment to detect and block malicious content before it reaches users. - Safe Links: Provides real-time protection by analyzing URLs at the time of click, safeguarding users from malicious links. - Anti-Phishing Policies: Utilizes advanced algorithms and machine learning to identify and mitigate phishing attempts, including those involving domain impersonation. - Protection for Collaboration Tools: Extends security measures to Microsoft Teams, SharePoint, and OneDrive, ensuring safe file sharing and collaboration. - Automated Investigation and Response (AIR): Automates threat investigation processes, enabling swift identification and remediation of security incidents. - Attack Simulation Training: Offers tools to simulate phishing attacks, helping organizations educate employees and strengthen their security posture. Primary Value and Problem Solved: Microsoft Defender for Office 365 addresses the critical need for advanced threat protection in today's digital workplace. By integrating seamlessly with Microsoft 365 applications, it provides a unified defense against sophisticated cyber threats, reducing the risk of data breaches and ensuring business continuity. Its comprehensive approach not only safeguards email communications but also secures collaborative platforms, enabling organizations to operate confidently in a secure environment.


  **Average Rating:** 4.5/5.0
  **Total Reviews:** 277
**How Do G2 Users Rate Microsoft Defender for Office 365?**

- **Has the product been a good partner in doing business?:** 8.8/10 (Category avg: 9.1/10)
- **Quality of Support:** 8.7/10 (Category avg: 9.0/10)
- **Ease of Admin:** 8.9/10 (Category avg: 8.9/10)
- **Ease of Use:** 8.9/10 (Category avg: 8.9/10)

**Who Is the Company Behind Microsoft Defender for Office 365?**

- **Seller:** [Microsoft](https://www.g2.com/sellers/microsoft)
- **Year Founded:** 1975
- **HQ Location:** Redmond, Washington
- **Twitter:** @microsoft (13,095,907 Twitter followers)
- **LinkedIn® Page:** https://www.linkedin.com/company/microsoft/ (231,632 employees on LinkedIn®)
- **Ownership:** MSFT

**Who Uses This Product?**
  - **Who Uses This:** Software Engineer, Associate Software Engineer
  - **Top Industries:** Information Technology and Services, Computer Software
  - **Company Size:** 40% Enterprise, 37% Mid-Market


#### What Are Microsoft Defender for Office 365's Pros and Cons?

**Pros:**

- Ease of Use (9 reviews)
- Security (8 reviews)
- Office 365 Integration (7 reviews)
- Email Security (6 reviews)
- Integrations (6 reviews)

**Cons:**

- Complexity (8 reviews)
- False Positives (6 reviews)
- Configuration Difficulties (4 reviews)
- Limited Reporting (3 reviews)
- Poor Detection (3 reviews)

### 4. [Abnormal AI](https://www.g2.com/products/abnormal-ai/reviews)
  Abnormal AI is the leading AI-native human behavior security platform, leveraging machine learning to stop sophisticated inbound attacks and detect compromised accounts across email and connected applications. The anomaly detection engine leverages identity and context to understand human behavior and analyze the risk of every cloud email event--detecting and stopping sophisticated, socially-engineered attacks that target the human vulnerability. You can deploy Abnormal in minutes with an API integration for Microsoft 365 or Google Workspace and experience the full value of the platform instantly. Additional protection is available for Slack, Workday, ServiceNow, Zoom, and multiple other cloud applications. Abnormal is currently trusted by more than 3,200 organizations, including over 25% of the Fortune 500, as it continues to redefine how cybersecurity works in the age of AI. For more information, please visit abnormal.ai


  **Average Rating:** 4.8/5.0
  **Total Reviews:** 73
**How Do G2 Users Rate Abnormal AI?**

- **Has the product been a good partner in doing business?:** 9.4/10 (Category avg: 9.1/10)
- **Quality of Support:** 9.5/10 (Category avg: 9.0/10)
- **Ease of Admin:** 9.5/10 (Category avg: 8.9/10)
- **Ease of Use:** 9.6/10 (Category avg: 8.9/10)

**Who Is the Company Behind Abnormal AI?**

- **Seller:** [Abnormal AI](https://www.g2.com/sellers/abnormal-ai)
- **Company Website:** https://abnormal.ai
- **Year Founded:** 2018
- **HQ Location:** Las Vegas, USA
- **LinkedIn® Page:** https://www.linkedin.com/company/abnormalsecurity/ (1,465 employees on LinkedIn®)

**Who Uses This Product?**
  - **Top Industries:** Financial Services, Manufacturing
  - **Company Size:** 48% Enterprise, 44% Mid-Market


#### What Are Abnormal AI's Pros and Cons?

**Pros:**

- Ease of Use (15 reviews)
- Customer Support (12 reviews)
- Easy Setup (12 reviews)
- Detection Efficiency (11 reviews)
- Email Security (11 reviews)

**Cons:**

- Email Filtering Issues (3 reviews)
- Email Issues (3 reviews)
- False Positives (3 reviews)
- Limited Reporting (3 reviews)
- Email Security (2 reviews)

### 5. [Libraesva Email Security](https://www.g2.com/products/libraesva-email-security/reviews)
  Protect your business from disruption, financial loss and reputational damage. Libraesva Email Security stops known and emerging email threats from reaching their target, so you only receive legitimate messages. It provides exceptional email security by integrating cloud email and a secure email gateway with Libraesva’s unique Adaptive Trust Engine that uses AI to learn the usual patterns of behavior for organizations and individuals, continuously assessing the strength of business-to-business trust and proactively holding anomalous traffic. Libraesva Email Security scans and filters all inbound and outbound emails for advanced malware, phishing, business email compromise, spam and more. Proprietary sandboxing technology removes dangerous payloads and active content from attachments, and you can protect users from visiting unsafe sites with active URL analysis that checks every link. Use Libraesva Email Security to understand the threat landscape and attacks launched against your organization, deal with security incidents faster, and see how you compare against others around the world. Easy to follow workflows make it painless to change configuration settings, and full reporting and dashboards give you full visibility of email traffic and trends so you can understand the risks and use insights to plan intelligent mitigation strategies.


  **Average Rating:** 4.8/5.0
  **Total Reviews:** 103
**How Do G2 Users Rate Libraesva Email Security?**

- **Has the product been a good partner in doing business?:** 9.5/10 (Category avg: 9.1/10)
- **Quality of Support:** 9.8/10 (Category avg: 9.0/10)
- **Ease of Admin:** 9.4/10 (Category avg: 8.9/10)
- **Ease of Use:** 9.3/10 (Category avg: 8.9/10)

**Who Is the Company Behind Libraesva Email Security?**

- **Seller:** [Libraesva](https://www.g2.com/sellers/libraesva)
- **Company Website:** https://www.libraesva.com
- **Year Founded:** 2013
- **HQ Location:** Italy
- **LinkedIn® Page:** https://www.linkedin.com/company/libraesva/ (10 employees on LinkedIn®)

**Who Uses This Product?**
  - **Who Uses This:** IT Manager
  - **Top Industries:** Information Technology and Services, Computer & Network Security
  - **Company Size:** 47% Mid-Market, 35% Small-Business


#### What Are Libraesva Email Security's Pros and Cons?

**Pros:**

- Ease of Use (35 reviews)
- Customer Support (30 reviews)
- Email Security (24 reviews)
- Effective (23 reviews)
- Setup Ease (16 reviews)

**Cons:**

- Complexity (8 reviews)
- User Interface (5 reviews)
- Access Issues (4 reviews)
- Difficult Setup (4 reviews)
- Email Issues (4 reviews)

### 6. [Paubox](https://www.g2.com/products/paubox/reviews)
  Paubox is a HIPAA compliant email security platform designed for healthcare organizations. It provides outbound email encryption and AI-powered inbound email protection, helping organizations safeguard protected health information (PHI) without changing how staff or patients use email. Email remains a critical communication tool in healthcare, but standard platforms like Google Workspace and Microsoft 365 are not HIPAA compliant on their own. Paubox makes compliance automatic and enhances security to defend against evolving phishing and malware attacks, all while maintaining a seamless user experience. Paubox serves small to mid-sized healthcare organizations, clinics, and IT teams seeking reliable compliance, reduced risk, and simple management. Key capabilities: - Automatic outbound encryption: Every message is encrypted by default; recipients read emails directly in their inbox, without portals or passwords - AI-powered inbound email security: Detects and blocks phishing, spoofing, and malware using generative AI analysis - Seamless integration: Works with Google Workspace, Microsoft 365, and Microsoft Exchange without new workflows or domain changes - Compliance and control: Supports HIPAA compliance and minimizes human error in handling PHI - Additional tools: Archiving, Data Loss Prevention, Paubox Email API, and Paubox Marketing Benefits: - Simplifies compliance management and reduces IT workload - Improves patient and staff experience with frictionless secure email - Strengthens protection against modern email threats Paubox enables healthcare organizations to confidently use email as a secure, compliant, and user-friendly communication channel, eliminating guesswork for staff and helping IT teams protect against data breaches and compliance risk.


  **Average Rating:** 4.9/5.0
  **Total Reviews:** 567
**How Do G2 Users Rate Paubox?**

- **Has the product been a good partner in doing business?:** 9.8/10 (Category avg: 9.1/10)
- **Quality of Support:** 9.8/10 (Category avg: 9.0/10)
- **Ease of Admin:** 9.6/10 (Category avg: 8.9/10)
- **Ease of Use:** 9.7/10 (Category avg: 8.9/10)

**Who Is the Company Behind Paubox?**

- **Seller:** [Paubox](https://www.g2.com/sellers/paubox)
- **Year Founded:** 2015
- **HQ Location:** San Francisco, CA
- **Twitter:** @PauboxHQ (16,581 Twitter followers)
- **LinkedIn® Page:** https://www.linkedin.com/company/4821384/ (46 employees on LinkedIn®)

**Who Uses This Product?**
  - **Who Uses This:** Owner, CEO
  - **Top Industries:** Mental Health Care, Hospital & Health Care
  - **Company Size:** 84% Small-Business, 14% Mid-Market


#### What Are Paubox's Pros and Cons?

**Pros:**

- Ease of Use (216 reviews)
- Security (169 reviews)
- Customer Support (146 reviews)
- Email Security (138 reviews)
- Setup Ease (137 reviews)

**Cons:**

- Expensive (50 reviews)
- Email Issues (32 reviews)
- Difficult Setup (25 reviews)
- Email Encryption Issues (17 reviews)
- Encryption Issues (13 reviews)

### 7. [IRONSCALES](https://www.g2.com/products/ironscales/reviews)
  IRONSCALES is a cloud-native email security platform that helps enterprises and MSPs close gaps with mailbox-level detection, autonomous remediation, and built-in user training. It combines AI and human insights that continuously learn from user behavior, message context, and analyst feedback to identify advanced threats like BEC, account takeovers, impersonation, and other advanced phishing attacks. IRONSCALES is headquartered in Atlanta, Georgia and is proud to serve more than 17,000 customers globally. IRONSCALES leverages adaptive AI and its Agentic AI engine, Themis, to drive autonomous, mailbox-level remediation with customizable automation. Smart clustering, context-driven decisioning, and user-reported inputs enable Themis to remediate threats in real time while preserving analyst oversight and control. Designed for rapid deployment via API, IRONSCALES integrates with existing security stacks without requiring MX record changes. To reduce risk, improve SOC efficiency, and support a proactive security culture, its comprehensive capabilities also include: - Phishing Simulations - Security Awareness Training - DMARC management - Deepfake Live Protection - Generative AI tools


  **Average Rating:** 4.7/5.0
  **Total Reviews:** 63
**How Do G2 Users Rate IRONSCALES?**

- **Has the product been a good partner in doing business?:** 9.6/10 (Category avg: 9.1/10)
- **Quality of Support:** 9.3/10 (Category avg: 9.0/10)
- **Ease of Admin:** 9.4/10 (Category avg: 8.9/10)
- **Ease of Use:** 9.4/10 (Category avg: 8.9/10)

**Who Is the Company Behind IRONSCALES?**

- **Seller:** [IRONSCALES](https://www.g2.com/sellers/ironscales)
- **Company Website:** https://ironscales.com
- **Year Founded:** 2014
- **HQ Location:** Atlanta, Georgia
- **Twitter:** @IRONSCALES (3,522 Twitter followers)
- **LinkedIn® Page:** https://www.linkedin.com/company/5287647/ (177 employees on LinkedIn®)

**Who Uses This Product?**
  - **Top Industries:** Information Technology and Services, Non-Profit Organization Management
  - **Company Size:** 51% Mid-Market, 31% Small-Business


#### What Are IRONSCALES's Pros and Cons?

**Pros:**

- Ease of Use (16 reviews)
- Phishing Protection (15 reviews)
- Email Security (14 reviews)
- Easy Setup (12 reviews)
- Customer Support (11 reviews)

**Cons:**

- False Positives (6 reviews)
- Poor Detection (4 reviews)
- Limited Features (3 reviews)
- Difficult Training (2 reviews)
- Email Filtering Issues (2 reviews)

### 8. [Hornetsecurity 365 Total Protection](https://www.g2.com/products/hornetsecurity-365-total-protection/reviews)
  365 Total Protection is the only solution on the market to cover all aspects of security, compliance and backup for Microsoft 365. Choose from various bundles to suit your business needs, and enjoy state-of-the-art email security that protects against spam, viruses, phishing and ransomware; plus email signatures and disclaimers. You can also benefit from Advanced Threat Protection (ATP) to defend your users against the most sophisticated email attacks, automated email continuity to prevent unexpected downtime and legally compliant email archiving to keep all emails safe and searchable. You can even opt for backup and recovery for endpoints and Microsoft 365 data in mailboxes, Teams, OneDrive and SharePoint. 365 Total Protection‘s tailored integration with Microsoft 365 simplifies your entire experience: from signup, to setup, to feature and user management. Its central console is a perfect blend of data privacy and ease of use, enabling you to do more and worry less.


  **Average Rating:** 4.6/5.0
  **Total Reviews:** 65
**How Do G2 Users Rate Hornetsecurity 365 Total Protection?**

- **Has the product been a good partner in doing business?:** 9.0/10 (Category avg: 9.1/10)
- **Quality of Support:** 8.9/10 (Category avg: 9.0/10)
- **Ease of Admin:** 8.8/10 (Category avg: 8.9/10)
- **Ease of Use:** 9.1/10 (Category avg: 8.9/10)

**Who Is the Company Behind Hornetsecurity 365 Total Protection?**

- **Seller:** [Hornetsecurity](https://www.g2.com/sellers/hornetsecurity)
- **Company Website:** https://www.hornetsecurity.com
- **Year Founded:** 2007
- **HQ Location:** Hannover, DE
- **Twitter:** @Hornetsecurity (1,117 Twitter followers)
- **LinkedIn® Page:** https://www.linkedin.com/company/hornetsecurity/ (523 employees on LinkedIn®)

**Who Uses This Product?**
  - **Top Industries:** Computer & Network Security, Information Technology and Services
  - **Company Size:** 49% Small-Business, 46% Mid-Market


#### What Are Hornetsecurity 365 Total Protection's Pros and Cons?

**Pros:**

- Email Security (7 reviews)
- Protection (6 reviews)
- Ease of Use (5 reviews)
- Malware Protection (5 reviews)
- Office 365 Integration (5 reviews)

**Cons:**

- User Interface (3 reviews)
- UX Improvement (3 reviews)
- Complexity (2 reviews)
- Configuration Difficulties (2 reviews)
- Difficult Setup (2 reviews)

### 9. [Valimail](https://www.g2.com/products/valimail/reviews)
  Valimail: The Leader in Email Authentication & Brand Protection Valimail is the trusted leader in automated email authentication, helping organizations achieve and maintain DMARC enforcement up to 4x faster with a unique blend of speed, simplicity, and automation. By eliminating manual processes, Valimail ensures that your brand stays protected against phishing, spoofing, and email fraud while improving email deliverability and brand trust. Valimail offers three solutions: 1) Valimail Monitor provides organizations with global visibility into all senders using their domains, removing the complexity of interpreting raw DMARC reports. Key Features & Benefits: -See Who’s Sending on Your Behalf – Instantly identify all senders using your domain and authorize the right ones. -Check Google & Yahoo Readiness – Get a real-time check to ensure your domain meets Google & Yahoo’s latest DMARC, DKIM, and SPF requirements. -Preview BIMI for Your Brand – Upload your logo and see how it would appear in inboxes on mobile and desktop. \>\> First step towards DMARC enforcement – Identify and authorize all senders before making changes that impact email flow. 2) Valimail Enforce is the only FedRAMP-certified platform and the vetted DMARC partner for Microsoft 365, offering fully automated DMARC, SPF, and DKIM configuration to eliminate errors and simplify implementation. Key Features & Benefits: -Automated DMARC, DKIM, and SPF Configuration – Reduce the risk of misconfiguration and achieve enforcement faster. -Expert DMARC Support & Advisory Services – Get direct access to technical support for tailored guidance and rapid issue resolution. -Powerful Analytics & Reporting – Gain actionable insights into email performance, phishing attempts, and domain spoofing. \>\> Stop phishing attacks, prevent brand impersonation, and ensure only legitimate emails reach inboxes. 3) Valimail Amplify helps brands stand out in crowded inboxes by enabling BIMI (Brand Indicators for Message Identification) and displaying your verified brand logo directly in emails. Key Features & Benefits: -Enhanced Brand Visibility & Competitive Edge – Your logo appears directly in inboxes, making your emails instantly recognizable. -Boost Engagement & Trust – Recipients trust and engage more with branded emails, improving open rates and conversions. -Seamless BIMI Implementation – The only fully automated BIMI solution, offering single-click logo configuration and automated VMC/CMC management. -Effortless Brand Asset Management – Easily assign, update, or swap logos across domains. \>\> For companies at DMARC enforcement, Amplify accelerates BIMI adoption—ensuring your logo appears in inboxes faster. For more information visit www.valimail.com.


  **Average Rating:** 4.5/5.0
  **Total Reviews:** 459
**How Do G2 Users Rate Valimail?**

- **Has the product been a good partner in doing business?:** 9.2/10 (Category avg: 9.1/10)
- **Quality of Support:** 9.1/10 (Category avg: 9.0/10)
- **Ease of Admin:** 9.1/10 (Category avg: 8.9/10)
- **Ease of Use:** 8.9/10 (Category avg: 8.9/10)

**Who Is the Company Behind Valimail?**

- **Seller:** [Valimail](https://www.g2.com/sellers/valimail)
- **Company Website:** https://www.valimail.com/
- **Year Founded:** 2015
- **HQ Location:** Denver, CO
- **Twitter:** @ValiMail (1,111 Twitter followers)
- **LinkedIn® Page:** https://linkedin.com/company/valimail (99 employees on LinkedIn®)

**Who Uses This Product?**
  - **Who Uses This:** IT Manager, CTO
  - **Top Industries:** Information Technology and Services, Computer Software
  - **Company Size:** 43% Small-Business, 34% Mid-Market


#### What Are Valimail's Pros and Cons?

**Pros:**

- Ease of Use (70 reviews)
- DMARC Management (57 reviews)
- Easy Setup (55 reviews)
- Setup Ease (44 reviews)
- Reporting (40 reviews)

**Cons:**

- Expensive (15 reviews)
- Limited Reporting (15 reviews)
- Complexity (13 reviews)
- Lack of Detail (12 reviews)
- Configuration Difficulties (11 reviews)

### 10. [Barracuda Impersonation Protection](https://www.g2.com/products/barracuda-impersonation-protection/reviews)
  Impersonation Protection protects against business email compromise, account takeover, spear phishing, and other cyber fraud. It combines artificial intelligence and deep integration with Microsoft Office 365 into a comprehensive cloud-based solution. Impersonation Protection’s unique API-based architecture lets the AI engine study historical email and learn users’ unique communication patterns. It blocks phishing attacks that harvest credentials and lead to account takeover and enables real-time remediation.


  **Average Rating:** 4.5/5.0
  **Total Reviews:** 87
**How Do G2 Users Rate Barracuda Impersonation Protection?**

- **Has the product been a good partner in doing business?:** 9.0/10 (Category avg: 9.1/10)
- **Quality of Support:** 8.9/10 (Category avg: 9.0/10)
- **Ease of Admin:** 9.1/10 (Category avg: 8.9/10)
- **Ease of Use:** 8.8/10 (Category avg: 8.9/10)

**Who Is the Company Behind Barracuda Impersonation Protection?**

- **Seller:** [Barracuda](https://www.g2.com/sellers/barracuda)
- **Year Founded:** 2002
- **HQ Location:** Campbell, CA
- **Twitter:** @Barracuda (15,236 Twitter followers)
- **LinkedIn® Page:** https://www.linkedin.com/company/barracuda-networks/ (2,248 employees on LinkedIn®)
- **Ownership:** Private

**Who Uses This Product?**
  - **Who Uses This:** Systems Administrator
  - **Top Industries:** Information Technology and Services, Higher Education
  - **Company Size:** 67% Mid-Market, 17% Small-Business


#### What Are Barracuda Impersonation Protection's Pros and Cons?

**Pros:**

- Phishing Protection (8 reviews)
- Ease of Use (7 reviews)
- Security (6 reviews)
- Setup Ease (6 reviews)
- Customer Support (5 reviews)

**Cons:**

- False Positives (8 reviews)
- Complexity (3 reviews)
- Inadequate Protection (3 reviews)
- UX Improvement (3 reviews)
- Configuration Difficulties (2 reviews)

### 11. [Sublime Email Security Platform](https://www.g2.com/products/sublime-email-security-platform/reviews)
  Sublime’s agentic platform stops more email attacks with less work. Our AI agents work like a digital SOC team in your environment, triaging and blocking advanced threats while adapting protections at adversary speed. It provides full transparency and automation by default, with control on demand for advanced teams, eliminating vendor bottlenecks or one-size-fits-all limits. Core Outcomes (The What): - Stop More Attacks with Fewer False Positives - block sophisticated threats (BEC, novel phishing, QR-based phishing) and reduce the false positives that waste time and disrupt workflows. Our tailored protections deliver a demonstrably higher catch rate, validated by the world's most demanding security teams. - Automate the Abuse Mailbox - Our Autonomous Security Analyst (ASA) automates triage, investigation, and remediation of user-reported email, cutting MTTR from hours to seconds and freeing your SOC team to focus on the threats that matter most. - Adapt Defenses Automatically. - When a missed attack is identified, we can create new coverage in hours. Our Autonomous Detection Engineer (ADÉ) generates, backtests, and deploys org-specific coverage, eliminating vendor ticket limbo. Differentiators (The How): - A Team of Agents using AI, Not Just a Black Box - Sublime deploys a team of specialized agents - like an analyst and a detection engineer - that use AI to protect, triage, and adapt your defenses. Unlike an opaque, monolithic AI, our agentic approach provides full transparency into every action, with visible decision history, message lineage, and backtests. - Org-Specific Protection, Not One-Size-Fits-All - Our Distributed Detection Model (DDM) is the foundation of our platform. It runs per-environment coverage that adapts to the unique attacks you face, allowing us to safely deploy protections that would be noisy in global models - something centralized systems simply can’t support. This means higher day-one efficacy and fewer false positives. - Autonomous by Default, Control on Demand - By stopping more attacks and reducing false positives, Sublime delivers a superior autonomous experience that requires less work. For advanced teams, the platform is fully extensible, allowing you to author your own detections and hunt for threats with a level of precision that one-size-fits-all solutions can't. Innovative organizations including Spotify, Snowflake, Brex, Elastic, Compass, Anduril, SentinelOne, and others rely on Sublime to secure the business and keep teams focused on strategic defense. 🔗 Learn how Sublime helps security teams stop more attacks with less work at sublime.security


  **Average Rating:** 4.9/5.0
  **Total Reviews:** 27
**How Do G2 Users Rate Sublime Email Security Platform?**

- **Has the product been a good partner in doing business?:** 9.7/10 (Category avg: 9.1/10)
- **Quality of Support:** 9.8/10 (Category avg: 9.0/10)
- **Ease of Admin:** 8.7/10 (Category avg: 8.9/10)
- **Ease of Use:** 9.0/10 (Category avg: 8.9/10)

**Who Is the Company Behind Sublime Email Security Platform?**

- **Seller:** [Sublime Security](https://www.g2.com/sellers/sublime-security)
- **Company Website:** https://sublime.security/
- **Year Founded:** 2019
- **HQ Location:** Washington, District of Columbia, United States
- **Twitter:** @sublime_sec (2,475 Twitter followers)
- **LinkedIn® Page:** https://www.linkedin.com/company/sublime-security (302 employees on LinkedIn®)

**Who Uses This Product?**
  - **Company Size:** 56% Enterprise, 19% Mid-Market


#### What Are Sublime Email Security Platform's Pros and Cons?

**Pros:**

- Ease of Use (15 reviews)
- Detection Efficiency (13 reviews)
- Easy Setup (10 reviews)
- Setup Ease (10 reviews)
- Customization (9 reviews)

**Cons:**

- Missing Features (5 reviews)
- Steep Learning Curve (5 reviews)
- Complexity (4 reviews)
- Limited Features (4 reviews)
- Learning Difficulty (3 reviews)

### 12. [KnowBe4 Cloud Email Security (Formerly Egress)](https://www.g2.com/products/knowbe4-cloud-email-security-formerly-egress/reviews)
  KnowBe4 Cloud Email Security is a comprehensive AI-powered email protection platform that defends against sophisticated inbound and outbound email threats, transforming email from organizations' largest attack surface into a strengthened defense layer. Designed for businesses of all sizes—particularly those in regulated industries handling sensitive information—this platform addresses the critical challenge of insider risk and human error, which account for 68% of data breaches. The platform delivers three integrated solutions: Defend™ provides AI-powered adaptive anti-phishing that detects business email compromise, spear phishing, and zero-day attacks while educating users with real-time contextual warning banners. Prevent™ offers AI-native outbound email security preventing data breaches by detecting misdirected emails, data exfiltration attempts, and unauthorized sharing. Protect™ delivers end-to-end email encryption seamlessly integrated into Outlook with automated policy enforcement. Key Capabilities: - Minutes-to-deploy with native Microsoft 365 integration - Patented contextual machine learning adapting to organizational communication patterns - Comprehensive analytics revealing organizations typically miss 90% of outbound security incidents - API integrations with existing security infrastructure Part of the KnowBe4 platform, Cloud Email Security transforms employees from vulnerabilities into informed cybersecurity assets through proactive threat management.


  **Average Rating:** 4.5/5.0
  **Total Reviews:** 71
**How Do G2 Users Rate KnowBe4 Cloud Email Security (Formerly Egress)?**

- **Has the product been a good partner in doing business?:** 9.4/10 (Category avg: 9.1/10)
- **Quality of Support:** 8.9/10 (Category avg: 9.0/10)
- **Ease of Admin:** 8.7/10 (Category avg: 8.9/10)
- **Ease of Use:** 8.7/10 (Category avg: 8.9/10)

**Who Is the Company Behind KnowBe4 Cloud Email Security (Formerly Egress)?**

- **Seller:** [KnowBe4, Inc.](https://www.g2.com/sellers/knowbe4-inc)
- **Company Website:** https://www.knowbe4.com
- **Year Founded:** 2010
- **HQ Location:** Clearwater, FL
- **Twitter:** @KnowBe4 (16,174 Twitter followers)
- **LinkedIn® Page:** https://www.linkedin.com/company/2225282/ (2,540 employees on LinkedIn®)

**Who Uses This Product?**
  - **Top Industries:** Hospital & Health Care, Information Technology and Services
  - **Company Size:** 53% Mid-Market, 30% Small-Business


#### What Are KnowBe4 Cloud Email Security (Formerly Egress)'s Pros and Cons?

**Pros:**

- Email Security (7 reviews)
- Protection (6 reviews)
- Customer Support (4 reviews)
- Detection Efficiency (4 reviews)
- Ease of Use (4 reviews)

**Cons:**

- Dashboard Issues (2 reviews)
- Email Filtering Issues (2 reviews)
- Email Issues (2 reviews)
- Email Security (2 reviews)
- False Positives (2 reviews)

### 13. [Cloudflare One (SASE)](https://www.g2.com/products/cloudflare-one-sase/reviews)
  Cloudflare One is a single-vendor secure access service edge (SASE) platform that converges security and networking services into a unified, global connectivity cloud. It replaces legacy, fragmented hardware and first-generation SASE solutions with a composable, programmable architecture. Cloudflare One connects and protects an organization's workforce, AI agents, and infrastructure. Learn more at https://www.cloudflare.com/sase/ Designed for agility, it enables teams to: - Accelerate safe AI adoption with granular visibility, control, and AI agent governance. - Modernize remote access by replacing clunky VPNs with zero trust access. - Block email phishing attacks with flexible, SASE-native email security. - Protect web traffic for remote users and branch offices with lightweight DNS filtering. - Deploy “coffee shop networking” with a light branch, heavy cloud approach.


  **Average Rating:** 4.6/5.0
  **Total Reviews:** 102
**How Do G2 Users Rate Cloudflare One (SASE)?**

- **Has the product been a good partner in doing business?:** 9.5/10 (Category avg: 9.1/10)
- **Quality of Support:** 9.2/10 (Category avg: 9.0/10)
- **Ease of Admin:** 9.1/10 (Category avg: 8.9/10)
- **Ease of Use:** 9.1/10 (Category avg: 8.9/10)

**Who Is the Company Behind Cloudflare One (SASE)?**

- **Seller:** [Cloudflare, Inc.](https://www.g2.com/sellers/cloudflare-inc)
- **Year Founded:** 2009
- **HQ Location:** San Francisco, California
- **Twitter:** @Cloudflare (284,649 Twitter followers)
- **LinkedIn® Page:** https://www.linkedin.com/company/407222/ (7,190 employees on LinkedIn®)
- **Ownership:** NYSE: NET

**Who Uses This Product?**
  - **Top Industries:** Information Technology and Services, Computer & Network Security
  - **Company Size:** 38% Small-Business, 34% Mid-Market


#### What Are Cloudflare One (SASE)'s Pros and Cons?

**Pros:**

- Ease of Use (8 reviews)
- Protection (7 reviews)
- Reliability (7 reviews)
- Security (7 reviews)
- User Interface (6 reviews)

**Cons:**

- Steep Learning Curve (5 reviews)
- Complexity (4 reviews)
- Difficult Learning (4 reviews)
- Difficult Learning Curve (4 reviews)
- Difficult Setup (4 reviews)

### 14. [SaneBox](https://www.g2.com/products/sanebox/reviews)
  SaneBox is an email management tool that helps the average worker save at least 2.5 hours per week so they can spend more time outside their inbox. Founded in 2011, SaneBox offers individuals and enterprise clients alike a full suite of email organizational tools to take back control of their inbox.


  **Average Rating:** 4.9/5.0
  **Total Reviews:** 187
**How Do G2 Users Rate SaneBox?**

- **Has the product been a good partner in doing business?:** 9.7/10 (Category avg: 9.1/10)
- **Quality of Support:** 9.7/10 (Category avg: 9.0/10)
- **Ease of Admin:** 9.8/10 (Category avg: 8.9/10)
- **Ease of Use:** 9.5/10 (Category avg: 8.9/10)

**Who Is the Company Behind SaneBox?**

- **Seller:** [SaneBox](https://www.g2.com/sellers/sanebox)
- **Year Founded:** 2010
- **HQ Location:** Boston, MA
- **Twitter:** @sanebox (9,152 Twitter followers)
- **LinkedIn® Page:** https://www.linkedin.com/company/2548570/ (13 employees on LinkedIn®)

**Who Uses This Product?**
  - **Who Uses This:** Owner, CEO
  - **Top Industries:** Information Technology and Services, Marketing and Advertising
  - **Company Size:** 79% Small-Business, 10% Mid-Market


#### What Are SaneBox's Pros and Cons?

**Pros:**

- Ease of Use (10 reviews)
- Inbox Management (10 reviews)
- Email Management (8 reviews)
- Efficiency (7 reviews)
- Easy Setup (6 reviews)

**Cons:**

- Expensive (3 reviews)
- Limited Features (3 reviews)
- Inadequate AI Features (2 reviews)
- Lack of Training (2 reviews)
- Learning Curve (2 reviews)

### 15. [SlashNext Integrated Cloud Email Security](https://www.g2.com/products/slashnext-integrated-cloud-email-security/reviews)
  SlashNext Integrated Cloud Email Security Slashnext Integrated Cloud Email Security enables organizations to stop 65% more targeted spear phishing, social engineering, business email compromise (BEC), and other malicious digital user attacks launched from legitimate, trusted sites. With power and 99.99% accuracy, SlashNext continuously detects and remediates threats missed by Microsoft Defender, ATPs, and relationship graph technologies. Powerful, Simple, Secure, Fast ROI Now organizations can leverage SlashNext’s award-winning AI threat detection to securely detect and remove targeted spear-phishing and other human threats that easily evade email security defenses. As targeted, well-crafted spear-phishing continues to rise dramatically in an environment where cyber criminals use automation and AI to increase the likelihood of compromising a target. The once-reliable relationship graphs, URL rewriting, and sandbox technologies of Secure Email Gateways (SEGs) cannot safeguard against rapidly evolving phishing tactics. Spear-phishing delivered through legitimate cloud services can bypass these cybersecurity solutions. Since these attacks focus on a person, the success rates are higher, providing the attacker with a lower-cost entry point into an organization.


  **Average Rating:** 4.9/5.0
  **Total Reviews:** 32
**How Do G2 Users Rate SlashNext Integrated Cloud Email Security?**

- **Has the product been a good partner in doing business?:** 9.9/10 (Category avg: 9.1/10)
- **Quality of Support:** 9.9/10 (Category avg: 9.0/10)
- **Ease of Admin:** 9.7/10 (Category avg: 8.9/10)
- **Ease of Use:** 9.8/10 (Category avg: 8.9/10)

**Who Is the Company Behind SlashNext Integrated Cloud Email Security?**

- **Seller:** [Varonis](https://www.g2.com/sellers/varonis)
- **Year Founded:** 2005
- **HQ Location:** New York, US
- **Twitter:** @varonis (6,399 Twitter followers)
- **LinkedIn® Page:** https://www.linkedin.com/company/varonis (2,798 employees on LinkedIn®)
- **Ownership:** NASDAQ: VRNS

**Who Uses This Product?**
  - **Company Size:** 44% Mid-Market, 38% Small-Business


#### What Are SlashNext Integrated Cloud Email Security's Pros and Cons?

**Pros:**

- Customer Support (1 reviews)
- Ease of Use (1 reviews)
- Reliability (1 reviews)
- Simple (1 reviews)
- Time-saving (1 reviews)

**Cons:**

- Limited Reporting (1 reviews)
- Outdated Interface (1 reviews)
- Poor Interface Design (1 reviews)
- User Interface (1 reviews)

### 16. [Barracuda Email Gateway Defense](https://www.g2.com/products/barracuda-email-gateway-defense/reviews)
  In today’s complex cyber-threat environment, you need an email security solution that delivers comprehensive security against sophisticated attacks while also being easy to deploy, configure, and manage. Barracuda provides cloud-based protection against advanced email attacks, helps ensure email continuity and scans outgoing email to prevent data loss - all without the need to install any additional hardware or software.


  **Average Rating:** 4.2/5.0
  **Total Reviews:** 37
**How Do G2 Users Rate Barracuda Email Gateway Defense?**

- **Has the product been a good partner in doing business?:** 8.5/10 (Category avg: 9.1/10)
- **Quality of Support:** 8.8/10 (Category avg: 9.0/10)
- **Ease of Admin:** 8.8/10 (Category avg: 8.9/10)
- **Ease of Use:** 8.8/10 (Category avg: 8.9/10)

**Who Is the Company Behind Barracuda Email Gateway Defense?**

- **Seller:** [Barracuda](https://www.g2.com/sellers/barracuda)
- **Year Founded:** 2002
- **HQ Location:** Campbell, CA
- **Twitter:** @Barracuda (15,236 Twitter followers)
- **LinkedIn® Page:** https://www.linkedin.com/company/barracuda-networks/ (2,248 employees on LinkedIn®)
- **Ownership:** Private

**Who Uses This Product?**
  - **Top Industries:** Hospital & Health Care, Information Technology and Services
  - **Company Size:** 59% Mid-Market, 26% Enterprise


#### What Are Barracuda Email Gateway Defense's Pros and Cons?

**Pros:**

- Email Security (4 reviews)
- Ease of Use (3 reviews)
- Phishing Protection (3 reviews)
- Protection (3 reviews)
- Spam Blocking (3 reviews)

**Cons:**

- Access Issues (1 reviews)
- Complexity (1 reviews)
- Complex Navigation (1 reviews)
- Configuration Difficulties (1 reviews)
- Dashboard Issues (1 reviews)

### 17. [CyberSentriq](https://www.g2.com/products/cybersentriq/reviews)
  CyberSentriq is an integrated cybersecurity and data protection platform, leveraging solutions from two best-of breed vendors in the MSP space. Partnering with over 3,000 MSPs and protecting over 150,000 SMBs globally, CyberSentriq provides an unmatched combination of proactive AI-driven email and web security, advanced data protection, and operational resilience. The CyberSentriq platform offers: - Data backup & recovery for Microsoft M365 & Entra ID, Azure, Google workspace and more - AI-driven threat intelligence and detection - Advanced email security at both the Mail Exchange (MX) and Integrated Cloud Email Security (ICES) layers. - Security awareness services - Phishing simulation - Email archiving and encryption


  **Average Rating:** 4.6/5.0
  **Total Reviews:** 379
**How Do G2 Users Rate CyberSentriq?**

- **Has the product been a good partner in doing business?:** 9.4/10 (Category avg: 9.1/10)
- **Quality of Support:** 9.1/10 (Category avg: 9.0/10)
- **Ease of Admin:** 9.2/10 (Category avg: 8.9/10)
- **Ease of Use:** 9.3/10 (Category avg: 8.9/10)

**Who Is the Company Behind CyberSentriq?**

- **Seller:** [CyberSentriq](https://www.g2.com/sellers/cybersentriq-d38aeb75-bc88-459b-a2d2-16ccbed4d6c5)
- **Company Website:** https://cybersentriq.com
- **Year Founded:** 2025
- **HQ Location:** Galway ,Galway
- **Twitter:** @Redstor (1,949 Twitter followers)
- **LinkedIn® Page:** https://www.linkedin.com/company/cybersentriq/ (198 employees on LinkedIn®)

**Who Uses This Product?**
  - **Who Uses This:** IT Manager, Director
  - **Top Industries:** Information Technology and Services, Computer & Network Security
  - **Company Size:** 48% Mid-Market, 41% Small-Business


#### What Are CyberSentriq's Pros and Cons?

**Pros:**

- Ease of Use (58 reviews)
- Backup Solutions (45 reviews)
- Backup Ease (38 reviews)
- Backup Features (36 reviews)
- Backup Frequency (27 reviews)

**Cons:**

- Backup Issues (18 reviews)
- Inadequate Reporting (17 reviews)
- Poor Reporting (15 reviews)
- Backup Failures (12 reviews)
- Reporting Issues (12 reviews)

### 18. [Vade](https://www.g2.com/products/vade/reviews)
  Vade is a global cybersecurity company specializing in developing threat detection and response technology with artificial intelligence. Founded in 2009 in Hem, France, Vade has eight global locations, including offices in the US, France, Japan, Canada, and Israel. Vade for M365 is a threat detection and response solution for Microsoft 365 that is purpose-built for MSPs. Vade combines powerful, AI-based protection with integrated, no-cost features that help MSPs save time, reduce admin workload, and generate more ROI from cybersecurity: • Phishing, spear phishing, and malware/ransomware protection • Auto- and assisted remediation • Multi-tenant incident response • Automated user awareness training • SIEM integration • Error-free configuration • Deploy in minutes • No MX record change • Layers with EOP/ATP


  **Average Rating:** 4.6/5.0
  **Total Reviews:** 169
**How Do G2 Users Rate Vade?**

- **Has the product been a good partner in doing business?:** 9.2/10 (Category avg: 9.1/10)
- **Quality of Support:** 9.2/10 (Category avg: 9.0/10)
- **Ease of Admin:** 9.3/10 (Category avg: 8.9/10)
- **Ease of Use:** 9.5/10 (Category avg: 8.9/10)

**Who Is the Company Behind Vade?**

- **Seller:** [Vade](https://www.g2.com/sellers/vade)
- **Company Website:** https://www.vadesecure.com
- **Year Founded:** 2009
- **HQ Location:** Hem, Hauts-de-France
- **Twitter:** @VadeSecure (1,841 Twitter followers)
- **LinkedIn® Page:** https://www.linkedin.com/company/vade-secure (214 employees on LinkedIn®)

**Who Uses This Product?**
  - **Top Industries:** Information Technology and Services, Computer & Network Security
  - **Company Size:** 56% Small-Business, 38% Mid-Market


#### What Are Vade's Pros and Cons?

**Pros:**

- AI Technology (1 reviews)
- Artificial Intelligence (1 reviews)
- Comprehensive Analysis (1 reviews)
- Malware Protection (1 reviews)
- Phishing Protection (1 reviews)

**Cons:**

- False Positives (1 reviews)
- Website Blocking Issues (1 reviews)

### 19. [SpamTitan Email Security](https://www.g2.com/products/spamtitan-email-security/reviews)
  SpamTitan Email Security identifies and prevents email spam, viruses via email, malware, malicious links, phishing attacks, spoofing and other email borne malicious threats. We provide advanced email security for your business or msp without making it complicated. Inbound and outbound scanning with AI driven real time threat intelligence. SpamTitan Email Security is built for the SMB and SME markets, businesses using Office 365, managed service providers and the education sector. Email Security, Web Security and Compliance do not need to cost an arm and a leg for those looking to save costs in their IT security spend and productivity. Security is a feature that Microsoft has added to 0365 and for most organizations this does not meet their security benchmarks. Some important features include: Phishing Protection. Real-time Blacklists: Protect your business by blocking spam, malware and malicious emails in real-time. Office365 Friendly: Strengthen your Office 365 security against Spam and Malware Cloud-based: Protect your business on-the-go with our cloud-based system. No hardware. Virus & Malware Detection: Block malware, ransomware and viruses from destroying your business. Free Tech Support: We offer excellent free technical support from a live technician. Outbound Mail Scanning: Ensure that malicious emails are not sent from your corporate emails. Affordable Monthly Billing: It is a very affordable, effective and easy to use solution simply set and forget. Industry Leading Support Team: Renowned for our focus on supporting customers with 98% satisfied customer rate in 2018 Whitelisting, Blacklisting & Greylisting: Allows whitelisting and blacklisting, advanced reporting, recipient verification and outbound scanning of email. Protection from Zero Day Attacks: A secure solution for email needs the ability to anticipate new attacks using predictive technology Data Leak Prevention: SpamTitan adds powerful data leak prevention rules to prevent internal data loss Dedicated RBLs: SpamTitan includes 6 specialist Real Time Blacklists (RBLs). Email Content Filtering: It includes comprehensive content filtering rules Security Against Infected Attachments: Allows the blocking of specified attachments by type (per domain) i.e. ZIP files Advanced Threat Protection: Inbuilt Bayesian auto learning and heuristics Spam Quarantine Reports: Extensive and detailed quarantine reports allowing end users control their account Customizable Policies: Each user, domain, domain group and overall system has its own block list SpamTitan's sandboxing feature protects against breaches and sophisticated email attacks by providing a powerful environment to run in-depth, sophisticated analysis of unknown or suspicious programs and files. SpamTitan Cloud is also a vital additonal email security layer in protecting Office 365 from malware and zero day attacks. Since 1999 SpamTitan Email Security has been building up threat intelligence that will dramatically reduce the risk of a successful email attack on your organization. Cloud security is all we do.


  **Average Rating:** 4.5/5.0
  **Total Reviews:** 176
**How Do G2 Users Rate SpamTitan Email Security?**

- **Has the product been a good partner in doing business?:** 9.2/10 (Category avg: 9.1/10)
- **Quality of Support:** 9.1/10 (Category avg: 9.0/10)
- **Ease of Admin:** 8.9/10 (Category avg: 8.9/10)
- **Ease of Use:** 9.0/10 (Category avg: 8.9/10)

**Who Is the Company Behind SpamTitan Email Security?**

- **Seller:** [CyberSentriq](https://www.g2.com/sellers/cybersentriq-d38aeb75-bc88-459b-a2d2-16ccbed4d6c5)
- **Year Founded:** 2025
- **HQ Location:** Galway ,Galway
- **Twitter:** @Redstor (1,949 Twitter followers)
- **LinkedIn® Page:** https://www.linkedin.com/company/cybersentriq/ (198 employees on LinkedIn®)

**Who Uses This Product?**
  - **Who Uses This:** IT Manager, CEO
  - **Top Industries:** Information Technology and Services, Construction
  - **Company Size:** 52% Small-Business, 45% Mid-Market


#### What Are SpamTitan Email Security's Pros and Cons?

**Pros:**

- Ease of Use (2 reviews)
- Customer Support (1 reviews)
- Easy Integrations (1 reviews)
- Integrations (1 reviews)
- Office 365 Integration (1 reviews)


### 20. [Intermedia Exchange Email](https://www.g2.com/products/intermedia-exchange-email/reviews)
  Intermedia Hosted Exchange provides a comprehensive cloud-based Microsoft Exchange Online experience to small to midsize businesses (SMBs). Highlights include versatile security options and white glove email migration support. Exchange Email is one of 30+ essential business applications from Intermedia. With a single control panel, your cloud is easier to use and more efficient to manage. Plus there's just one bill, one password and one support team. Join the 1.4M business users that trust Intermedia with their communication needs and experience: Unbelievable uptime: Our 99.999% uptime SLA means no more than 26 seconds of unplanned downtime per month. J.D. Power-certified 24/7 support: Our expert support is certified by J.D. Power as "exceptional". We're here for you by phone or chat. Expert migration and onboarding: — FREE! Our Cloud Concierge™experts will create a custom migration plan with no downtime or data loss.


  **Average Rating:** 3.9/5.0
  **Total Reviews:** 23
**How Do G2 Users Rate Intermedia Exchange Email?**

- **Has the product been a good partner in doing business?:** 8.3/10 (Category avg: 9.1/10)
- **Quality of Support:** 8.6/10 (Category avg: 9.0/10)
- **Ease of Admin:** 9.6/10 (Category avg: 8.9/10)
- **Ease of Use:** 9.2/10 (Category avg: 8.9/10)

**Who Is the Company Behind Intermedia Exchange Email?**

- **Seller:** [Intermedia](https://www.g2.com/sellers/intermedia)
- **Year Founded:** 1993
- **HQ Location:** Sunnyvale, California
- **Twitter:** @intermedia_net (4,558 Twitter followers)
- **LinkedIn® Page:** https://www.linkedin.com/company/8903/ (1,370 employees on LinkedIn®)

**Who Uses This Product?**
  - **Top Industries:** Information Technology and Services
  - **Company Size:** 65% Small-Business, 30% Mid-Market


### 21. [OfficeScan](https://www.g2.com/products/officescan/reviews)
  Trend Micro OfficeScan infuses high-fidelity machine learning into a blend of threat protection techniques to eliminate security gaps across any user activity and any endpoint. It constantly learns, adapts, and automatically shares threat intelligence across your environment.


  **Average Rating:** 4.0/5.0
  **Total Reviews:** 43
**How Do G2 Users Rate OfficeScan?**

- **Has the product been a good partner in doing business?:** 8.5/10 (Category avg: 9.1/10)
- **Quality of Support:** 8.2/10 (Category avg: 9.0/10)
- **Ease of Admin:** 8.0/10 (Category avg: 8.9/10)
- **Ease of Use:** 8.5/10 (Category avg: 8.9/10)

**Who Is the Company Behind OfficeScan?**

- **Seller:** [Trend Micro](https://www.g2.com/sellers/trend-micro)
- **Year Founded:** 1988
- **HQ Location:** Tokyo
- **LinkedIn® Page:** https://www.linkedin.com/company/4312/ (8,040 employees on LinkedIn®)
- **Ownership:** OTCMKTS:TMICY
- **Total Revenue (USD mm):** $1,515

**Who Uses This Product?**
  - **Top Industries:** Information Technology and Services
  - **Company Size:** 46% Mid-Market, 28% Enterprise


### 22. [Scanmail](https://www.g2.com/products/scanmail/reviews)
  ScanMail Suite for IBM Domino stops highly targeted email attacks, such as spear phishing, by using document exploit detection, enhanced web reputation, and sandboxing as part of a custom APT defense. ScanMail also blocks traditional threats with reputation technology and correlated global threat intelligence from Trend Micro Smart Protection Network cloud-based security.


  **Average Rating:** 4.6/5.0
  **Total Reviews:** 10
**How Do G2 Users Rate Scanmail?**

- **Has the product been a good partner in doing business?:** 8.3/10 (Category avg: 9.1/10)
- **Quality of Support:** 8.1/10 (Category avg: 9.0/10)
- **Ease of Admin:** 7.1/10 (Category avg: 8.9/10)
- **Ease of Use:** 9.4/10 (Category avg: 8.9/10)

**Who Is the Company Behind Scanmail?**

- **Seller:** [Trend Micro](https://www.g2.com/sellers/trend-micro)
- **Year Founded:** 1988
- **HQ Location:** Tokyo
- **LinkedIn® Page:** https://www.linkedin.com/company/4312/ (8,040 employees on LinkedIn®)
- **Ownership:** OTCMKTS:TMICY
- **Total Revenue (USD mm):** $1,515

**Who Uses This Product?**
  - **Company Size:** 55% Mid-Market, 36% Enterprise


### 23. [Symantec Mail Security for Microsoft Exchange](https://www.g2.com/products/symantec-symantec-mail-security-for-microsoft-exchange/reviews)
  Symantec Mail Security for Microsoft Exchange (SMSMSE) combines Symantec anti-malware technology with advanced heuristics and file reputation to provide real-time protection for email against viruses, spyware, phishing, and other malicious attacks. For additional protection, SMSMSE offers Symantec Premium AntiSpam (additional license), powered by Brightmail technology. Together, these protections help to stop 99 percent of incoming spam with less than one false positive per million. SMSMSE enforces content filtering policies on Microsoft Exchange Server 2010, 2013, and 2016, while supporting hosted, Microsoft Hyper-V®, and VMware virtualized Exchange server environments. Symantec Mail Security for Microsoft Exchange complements other layers of protection by preventing the spread of email-borne threats and enforcing data loss prevention (DLP) policies.


  **Average Rating:** 4.3/5.0
  **Total Reviews:** 13
**How Do G2 Users Rate Symantec Mail Security for Microsoft Exchange?**

- **Has the product been a good partner in doing business?:** 9.2/10 (Category avg: 9.1/10)
- **Quality of Support:** 9.3/10 (Category avg: 9.0/10)
- **Ease of Admin:** 8.3/10 (Category avg: 8.9/10)
- **Ease of Use:** 9.2/10 (Category avg: 8.9/10)

**Who Is the Company Behind Symantec Mail Security for Microsoft Exchange?**

- **Seller:** [Broadcom](https://www.g2.com/sellers/broadcom-ab3091cd-4724-46a8-ac89-219d6bc8e166)
- **Year Founded:** 1991
- **HQ Location:** San Jose, CA
- **Twitter:** @broadcom (63,763 Twitter followers)
- **LinkedIn® Page:** https://www.linkedin.com/company/broadcom/ (55,094 employees on LinkedIn®)
- **Ownership:** NASDAQ: CA

**Who Uses This Product?**
  - **Company Size:** 54% Mid-Market, 38% Enterprise


### 24. [Symantec Email Security.Cloud](https://www.g2.com/products/symantec-email-security-cloud/reviews)
  Safeguard your cloud-based email with our industry-leading threat and anti-spam protection for Office 365, Google Apps, and more.


  **Average Rating:** 4.1/5.0
  **Total Reviews:** 60
**How Do G2 Users Rate Symantec Email Security.Cloud?**

- **Has the product been a good partner in doing business?:** 8.2/10 (Category avg: 9.1/10)
- **Quality of Support:** 7.9/10 (Category avg: 9.0/10)
- **Ease of Admin:** 7.9/10 (Category avg: 8.9/10)
- **Ease of Use:** 8.0/10 (Category avg: 8.9/10)

**Who Is the Company Behind Symantec Email Security.Cloud?**

- **Seller:** [Broadcom](https://www.g2.com/sellers/broadcom-ab3091cd-4724-46a8-ac89-219d6bc8e166)
- **Year Founded:** 1991
- **HQ Location:** San Jose, CA
- **Twitter:** @broadcom (63,763 Twitter followers)
- **LinkedIn® Page:** https://www.linkedin.com/company/broadcom/ (55,094 employees on LinkedIn®)
- **Ownership:** NASDAQ: CA

**Who Uses This Product?**
  - **Top Industries:** Information Technology and Services, Computer & Network Security
  - **Company Size:** 39% Enterprise, 38% Mid-Market


### 25. [Graphus](https://www.g2.com/products/graphus/reviews)
  If managing your company's Microsoft 365 or Google Workspace email security is just one of your many responsibilities, then let Graphus help with its patented AI technologies that automate security workflows. Graphus excels at stopping both known and zero-day email threats before they reach your employee inboxes--without you lifting a finger or hurting your budget. Graphus is cloud-native and starts protecting you in minutes, with no software installation or email rerouting required.


  **Average Rating:** 4.3/5.0
  **Total Reviews:** 71
**How Do G2 Users Rate Graphus?**

- **Has the product been a good partner in doing business?:** 8.6/10 (Category avg: 9.1/10)
- **Quality of Support:** 8.6/10 (Category avg: 9.0/10)
- **Ease of Admin:** 8.8/10 (Category avg: 8.9/10)
- **Ease of Use:** 8.7/10 (Category avg: 8.9/10)

**Who Is the Company Behind Graphus?**

- **Seller:** [Kaseya](https://www.g2.com/sellers/kaseya)
- **Year Founded:** 2000
- **HQ Location:** Miami, FL
- **Twitter:** @KaseyaCorp (17,420 Twitter followers)
- **LinkedIn® Page:** https://www.linkedin.com/company/kaseya/ (5,471 employees on LinkedIn®)

**Who Uses This Product?**
  - **Top Industries:** Information Technology and Services, Computer & Network Security
  - **Company Size:** 44% Small-Business, 38% Mid-Market


#### What Are Graphus's Pros and Cons?

**Pros:**

- Easy Setup (5 reviews)
- Ease of Use (4 reviews)
- Phishing Protection (3 reviews)
- Setup Ease (3 reviews)
- AI Technology (2 reviews)

**Cons:**

- False Positives (3 reviews)
- Email Filtering Issues (2 reviews)
- Limited Reporting (2 reviews)
- Complex Navigation (1 reviews)
- Email Security (1 reviews)


    ## What Is Email Anti-spam Software?
  [Email Security Software](https://www.g2.com/categories/email-security)
  ## What Software Categories Are Similar to Email Anti-spam Software?
    - [Secure Email Gateway Software](https://www.g2.com/categories/secure-email-gateway)
    - [Cloud Email Security Solutions](https://www.g2.com/categories/cloud-email-security)
    - [Intelligent Email Protection Software](https://www.g2.com/categories/intelligent-email-protection)

  
    ---
## What Are the Most Common Questions About Email Anti-spam Software?
*AI-generated · Last updated: May 26, 2026*
  ### What Email Anti Spam platforms with the best track record on false-positive reduction in large organizations?
  Based on G2 reviews, buyers looking for false-positive reduction in larger environments most often describe a balance between strong filtering and fewer disruptions from Check Point Harmony Email & Collaboration, Abnormal AI, and Libraesva Email Security. According to verified users, Check Point is repeatedly praised for rarely blocking legitimate mail, while Abnormal AI reviewers say it reduces manual queue handling by accurately separating malicious and legitimate messages after a learning period. G2 reviewers mention Libraesva for low false-positive filtering and strong spam and phishing control, especially where administrators want clear visibility and easy tuning. Reviewers also note that some products still require policy adjustment, especially during early deployment or in more complex environments.

**Here are some of the top-rated products on G2:**

- [Check Point Harmony Email & Collaboration](https://www.g2.com/products/check-point-harmony-email-collaboration/reviews/check-point-harmony-email-collaboration-review-12713186) – reviewers say it rarely blocks legitimate mail while still catching phishing, spam, and malware.
- [Abnormal AI](https://www.g2.com/products/abnormal-ai/reviews/abnormal-ai-review-12114161) – users highlight minimal false positives after the learning period across multiple tenants and platforms.
- [Libraesva Email Security](https://www.g2.com/products/libraesva-email-security/reviews/libraesva-email-security-review-12693025) – reviewers emphasize low false positives alongside strong spam detection and reporting.


  ### Which Email Anti Spam solutions reduce IT admin workload while maintaining strict phishing protection?
  Based on G2 reviews, [Check Point Harmony Email & Collaboration](https://www.g2.com/products/check-point-harmony-email-collaboration/reviews/check-point-harmony-email-collaboration-review-12713186) stands out most clearly for reducing admin effort while keeping phishing defenses strong. According to verified users, teams describe simple setup, easy policy management, and less manual review because phishing, spam, fake links, and malicious attachments are filtered automatically. G2 reviewers mention that it helps reduce help desk tickets, saves IT time, and improves visibility without disrupting email flow. Reviewers do mention that initial policy tuning and alert noise can require attention in some environments, but the overall pattern in recent reviews is that administrators spend less time manually checking suspicious messages once the platform is in place.


  ### What Email filtering that blocks phishing attempts without trapping legitimate customer communication for mid-market companies balancing?
  Based on G2 reviews, products most often associated with strong phishing blocking and fewer interruptions to legitimate communication include Check Point Harmony Email & Collaboration, Proofpoint Core Email Protection, and Paubox. According to verified users, Check Point is frequently described as catching phishing and malware while rarely quarantining good mail compared with previous tools. G2 reviewers mention Proofpoint for strong threat detection, though some teams report occasional false positives that require manual release. Paubox reviewers highlight secure communication and phishing protection, but some users mention valid emails can be blocked in patient-heavy workflows. For mid-market buyers, the common theme in reviews is to prioritize products that combine strong filtering with clear quarantine controls and manageable policy tuning.


  ### What Email filtering tools ranked for reliable spam blocking when managing multi-tenant enterprise productivity suites 365 environments?
  Based on G2 reviews, the strongest options for reliable spam blocking in Microsoft 365-heavy and multi-tenant environments are Check Point Harmony Email & Collaboration, Hornetsecurity 365 Total Protection, and Microsoft Defender for Office 365. According to verified users, Check Point is praised for smooth API-based deployment with Microsoft 365 and for filtering phishing, spam, and malicious links without major mail-flow disruption. G2 reviewers mention Hornetsecurity for centralized multi-tenant policy control and dependable anti-spam filtering across tenants. Microsoft Defender for Office 365 is valued for native ecosystem integration, message tracing, and threat investigation within Microsoft environments. Reviewers across all three also note that tuning and navigation can take time, especially in more complex administrative setups.


  ### What highest rated Email Anti Spam platforms for healthcare practices requiring minimal false alarms based on user reviews?
  Based on G2 reviews, healthcare-focused buyers looking for minimal false alarms most often surface Paubox, Proofpoint Core Email Protection, and Libraesva Email Security. According to verified users, Paubox is widely used for HIPAA-focused communication and is valued for secure messaging that fits directly into existing inbox workflows, though some users note occasional valid emails landing in quarantine. G2 reviewers mention Proofpoint for strong protection against phishing, spoofing, and malicious attachments, but some organizations still report occasional legitimate messages being flagged. Libraesva reviewers repeatedly emphasize low false positives, easy administration, and strong protection against phishing and spam. Across these reviews, the best fit depends on whether the priority is healthcare compliance workflow, stronger enterprise controls, or minimizing mailbox disruptions.


  ### What Most trusted Email Anti Spam software by IT Security Managers at financial services firms based on user reviews?
  Based on G2 reviews, trusted options for teams handling sensitive financial-style risk patterns most often include Abnormal AI, Proofpoint Core Email Protection, and Check Point Harmony Email & Collaboration. According to verified users, Abnormal AI is praised for detecting sophisticated phishing, vendor fraud, account takeovers, and behavior-based attacks that traditional gateways missed. G2 reviewers mention Proofpoint for strong perimeter defense, attachment and link vetting, BEC detection, and detailed threat visibility. Check Point reviewers highlight phishing prevention, account takeover protection, and policy flexibility across cloud collaboration tools. While the review export does not consistently identify many financial services companies by segment, the trust signals that stand out most are reduced manual review, strong impersonation defense, and reliable handling of advanced phishing attempts.


  ### What Email Anti Spam platforms that reliably catch advanced phishing and ransomware threats without overwhelming admin queues?
  Based on G2 reviews, buyers looking for advanced threat coverage without heavy queue management most often compare Abnormal AI, Proofpoint Core Email Protection, and Sublime Email Security Platform. According to verified users, Abnormal AI is repeatedly described as highly accurate, with less time spent reviewing queues, fewer manual releases, and strong detection of phishing, vendor fraud, and account compromise. G2 reviewers mention Proofpoint for consistent blocking of phishing, malware, spoofing, and malicious attachments, although some teams report occasional quarantine tuning work. Sublime reviewers highlight transparent detections, automated remediation, and reduced manual investigation time for user-reported phishing. Across the reviews, the strongest signals come from products that combine accurate detections with automation and clear admin workflows.


  ### What best Email Anti Spam software for healthcare and finance teams managing HIPAA-compliant communication?
  Based on G2 reviews, healthcare and similarly regulated teams most often surface Paubox, Proofpoint Core Email Protection, and Heimdal when they need strong email protection with secure communication workflows. According to verified users, Paubox is especially associated with HIPAA-compliant email, encrypted communication, and an experience that does not require recipients to use extra portals or logins. G2 reviewers mention Proofpoint for blocking phishing, malware, spoofing, and suspicious attachments in security-sensitive environments. Heimdal reviewers describe bundled email and endpoint protection that helps isolate phishing and ransomware-targeted emails. Review patterns suggest Paubox is strongest for seamless compliant communication, while Proofpoint and Heimdal are more frequently praised for broader threat filtering and administrator controls.

**Here are some of the top-rated products on G2:**

- [Paubox](https://www.g2.com/products/paubox/reviews/paubox-review-12459860) – reviewers use it for HIPAA-compliant encrypted email that fits into existing inbox workflows.
- [Proofpoint Core Email Protection](https://www.g2.com/products/proofpoint-core-email-protection/reviews/proofpoint-core-email-protection-review-12429517) – users highlight phishing, malware, spoofing, and malicious link protection for sensitive organizations.
- [Heimdal](https://www.g2.com/products/heimdal/reviews/heimdal-review-12683374) – reviewers describe isolating phishing and ransomware-targeted emails while bundling email and endpoint security.


  ### Which Email Anti Spam solutions offer granular policy controls for different departments and compliance zones?
  Based on G2 reviews, Check Point Harmony Email & Collaboration, Proofpoint Core Email Protection, and Libraesva Email Security are the products most often linked with granular controls. According to verified users, Check Point is praised for policy flexibility, DLP features, and visibility across email and collaboration tools, though some reviewers say advanced settings can be noisy or complex at first. G2 reviewers mention Proofpoint for customizable rules, internal DMARC policies, and protection layers that support large organizations with varied requirements, even if rule management can be spread across multiple areas. Libraesva reviewers highlight centralized administration, customizable rules, and detailed message analysis. The overall review pattern suggests these tools are strongest when buyers need tighter control across user groups, mail flows, and security policies.


  ### What Email filtering software that prevents legitimate emails from customer communication from being mistakenly blocked?
  Based on G2 reviews, buyers focused on preserving legitimate customer communication most often highlight Check Point Harmony Email & Collaboration, Abnormal AI, and Paubox. According to verified users, Check Point is frequently described as more accurate than previous solutions, with rare legitimate mail quarantines and fewer workflow disruptions. G2 reviewers mention Abnormal AI for accurately distinguishing genuine and malicious messages, reducing queue management and manual release work after deployment. Paubox reviewers value unobtrusive secure email workflows for client communication, though some users still report valid emails being blocked and needing unblocking options. Across reviews, the best pattern for avoiding mistaken blocks is strong phishing protection paired with low false-positive reports and easy quarantine review when edge cases appear.