# Best Enterprise Cloud Email Security Solutions

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

   Products classified in the overall Cloud Email Security category are similar in many regards and help companies of all sizes solve their business problems. However, enterprise business features, pricing, setup, and installation differ from businesses of other sizes, which is why we match buyers to the right Enterprise Business Cloud Email Security to fit their needs. Compare product ratings based on reviews from enterprise users or connect with one of G2's buying advisors to find the right solutions within the Enterprise Business Cloud Email Security category.

In addition to qualifying for inclusion in the Cloud Email Security Solutions category, to qualify for inclusion in the Enterprise Business Cloud Email Security Solutions category, a product must have at least 10 reviews left by a reviewer from an enterprise business.





## Category Overview

**Total Products under this Category:** 84


## Trust & Credibility Stats

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

- 30 Analysts and Data Experts
- 6,800+ Authentic Reviews
- 84+ 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.


## Best Cloud Email Security Solutions At A Glance

- **Best for Small Businesses:** [Acronis Cyber Protect Cloud](https://www.g2.com/products/acronis-cyber-protect-cloud/reviews)
- **Best for Mid-Market:** [Check Point Harmony Email & Collaboration](https://www.g2.com/products/check-point-harmony-email-collaboration/reviews)
- **Best for Enterprise:** [Proofpoint Core Email Protection](https://www.g2.com/products/proofpoint-core-email-protection/reviews)
- **Highest User Satisfaction:** [Paubox](https://www.g2.com/products/paubox/reviews)
- **Best Free Software:** [Paubox](https://www.g2.com/products/paubox/reviews)


---

**Sponsored**

### Sublime Email Security Platform

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



[Visit website](https://www.g2.com/external_clickthroughs/record?secure%5Bad_program%5D=paid_promo&secure%5Bad_slot%5D=category_product_list&secure%5Bcategory_id%5D=1833&secure%5Bmedium%5D=sponsored&secure%5Bprioritized%5D=false&secure%5Bproduct_id%5D=1417082&secure%5Bresource_id%5D=1833&secure%5Bresource_type%5D=Category&secure%5Bsource_type%5D=category_page&secure%5Bsource_url%5D=https%3A%2F%2Fwww.g2.com%2Fcategories%2Fcloud-email-security%2Fmid-market&secure%5Btoken%5D=022d93e6ab50736275f0abb07c601c6205d5d42a21fb7373be425948f305534d&secure%5Burl%5D=https%3A%2F%2Fsublime.security&secure%5Burl_type%5D=paid_promos)

---

## Top-Rated Products (Ranked by G2 Score)
  ### 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:** 571

**User Satisfaction Scores:**

- **Has the product been a good partner in doing business?:** 9.2/10 (Category avg: 9.3/10)
- **Advanced Threat Protection (ATP):** 9.1/10 (Category avg: 9.0/10)
- **Anti-Phishing:** 9.1/10 (Category avg: 9.2/10)
- **Quarantine:** 9.4/10 (Category avg: 9.1/10)


**Seller Details:**

- **Seller:** [Proofpoint](https://www.g2.com/sellers/proofpoint)
- **Company Website:** https://www.proofpoint.com/us
- **Year Founded:** 2002
- **HQ Location:** Sunnyvale, CA
- **Twitter:** @proofpoint (31,141 Twitter followers)
- **LinkedIn® Page:** https://www.linkedin.com/company/proofpoint (5,020 employees on LinkedIn®)

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


#### Pros & Cons

**Pros:**

- Protection (88 reviews)
- Email Security (81 reviews)
- Ease of Use (66 reviews)
- Effective (52 reviews)
- Security (49 reviews)

**Cons:**

- Outdated Interface (28 reviews)
- User Interface (24 reviews)
- Email Issues (23 reviews)
- Complexity (20 reviews)
- False Positives (19 reviews)

  ### 2. [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

**User Satisfaction Scores:**

- **Has the product been a good partner in doing business?:** 9.7/10 (Category avg: 9.3/10)
- **Advanced Threat Protection (ATP):** 9.7/10 (Category avg: 9.0/10)
- **Anti-Phishing:** 9.6/10 (Category avg: 9.2/10)
- **Quarantine:** 9.3/10 (Category avg: 9.1/10)


**Seller Details:**

- **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 (2,454 Twitter followers)
- **LinkedIn® Page:** https://www.linkedin.com/company/sublime-security (284 employees on LinkedIn®)

**Reviewer Demographics:**
  - **Company Size:** 56% Enterprise, 19% Mid-Market


#### Pros & 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)

  ### 3. [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:** 67

**User Satisfaction Scores:**

- **Has the product been a good partner in doing business?:** 9.4/10 (Category avg: 9.3/10)
- **Advanced Threat Protection (ATP):** 9.3/10 (Category avg: 9.0/10)
- **Anti-Phishing:** 9.4/10 (Category avg: 9.2/10)
- **Quarantine:** 8.9/10 (Category avg: 9.1/10)


**Seller Details:**

- **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®)

**Reviewer Demographics:**
  - **Top Industries:** Manufacturing, Financial Services
  - **Company Size:** 51% Enterprise, 42% Mid-Market


#### Pros & 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)

  ### 4. [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:** 465

**User Satisfaction Scores:**

- **Has the product been a good partner in doing business?:** 9.3/10 (Category avg: 9.3/10)
- **Advanced Threat Protection (ATP):** 9.2/10 (Category avg: 9.0/10)
- **Anti-Phishing:** 9.4/10 (Category avg: 9.2/10)
- **Quarantine:** 9.3/10 (Category avg: 9.1/10)


**Seller Details:**

- **Seller:** [Check Point Software Technologies](https://www.g2.com/sellers/check-point-software-technologies)
- **Year Founded:** 1993
- **HQ Location:** Redwood City, CA
- **Twitter:** @CheckPointSW (70,978 Twitter followers)
- **LinkedIn® Page:** https://www.linkedin.com/company/check-point-software-technologies/ (8,356 employees on LinkedIn®)
- **Ownership:** NASDAQ:CHKP

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


#### Pros & 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)

  ### 5. [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:** 276

**User Satisfaction Scores:**

- **Has the product been a good partner in doing business?:** 8.8/10 (Category avg: 9.3/10)
- **Advanced Threat Protection (ATP):** 9.0/10 (Category avg: 9.0/10)
- **Anti-Phishing:** 9.0/10 (Category avg: 9.2/10)
- **Quarantine:** 8.7/10 (Category avg: 9.1/10)


**Seller Details:**

- **Seller:** [Microsoft](https://www.g2.com/sellers/microsoft)
- **Year Founded:** 1975
- **HQ Location:** Redmond, Washington
- **Twitter:** @microsoft (13,105,844 Twitter followers)
- **LinkedIn® Page:** https://www.linkedin.com/company/microsoft/ (227,697 employees on LinkedIn®)
- **Ownership:** MSFT

**Reviewer Demographics:**
  - **Who Uses This:** Software Engineer, Associate Software Engineer
  - **Top Industries:** Information Technology and Services, Computer Software
  - **Company Size:** 39% Enterprise, 37% Mid-Market


#### Pros & Cons

**Pros:**

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

**Cons:**

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

  ### 6. [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:** 4.6/5.0
  **Total Reviews:** 448

**User Satisfaction Scores:**

- **Has the product been a good partner in doing business?:** 9.2/10 (Category avg: 9.3/10)
- **Advanced Threat Protection (ATP):** 7.0/10 (Category avg: 9.0/10)
- **Anti-Phishing:** 8.0/10 (Category avg: 9.2/10)
- **Quarantine:** 7.8/10 (Category avg: 9.1/10)


**Seller Details:**

- **Seller:** [Valimail](https://www.g2.com/sellers/valimail)
- **Company Website:** https://www.valimail.com/
- **Year Founded:** 2015
- **HQ Location:** Denver, CO
- **Twitter:** @ValiMail (1,107 Twitter followers)
- **LinkedIn® Page:** https://linkedin.com/company/valimail (102 employees on LinkedIn®)

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


#### Pros & Cons

**Pros:**

- Ease of Use (77 reviews)
- DMARC Management (66 reviews)
- Easy Setup (61 reviews)
- Setup Ease (48 reviews)
- Reporting (41 reviews)

**Cons:**

- Expensive (19 reviews)
- Limited Reporting (15 reviews)
- Complexity (14 reviews)
- Lack of Detail (13 reviews)
- DMARC Issues (12 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:** 53

**User Satisfaction Scores:**

- **Has the product been a good partner in doing business?:** 9.6/10 (Category avg: 9.3/10)
- **Advanced Threat Protection (ATP):** 9.4/10 (Category avg: 9.0/10)
- **Anti-Phishing:** 9.6/10 (Category avg: 9.2/10)
- **Quarantine:** 9.0/10 (Category avg: 9.1/10)


**Seller Details:**

- **Seller:** [IRONSCALES](https://www.g2.com/sellers/ironscales)
- **Company Website:** https://ironscales.com
- **Year Founded:** 2014
- **HQ Location:** Atlanta, Georgia
- **Twitter:** @IRONSCALES (3,527 Twitter followers)
- **LinkedIn® Page:** https://www.linkedin.com/company/5287647/ (176 employees on LinkedIn®)

**Reviewer Demographics:**
  - **Top Industries:** Information Technology and Services, Non-Profit Organization Management
  - **Company Size:** 59% Mid-Market, 20% Small-Business


#### Pros & Cons

**Pros:**

- Ease of Use (16 reviews)
- Email Security (15 reviews)
- Phishing Protection (15 reviews)
- Easy Setup (13 reviews)
- Customer Support (11 reviews)

**Cons:**

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

  ### 8. [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:** 101

**User Satisfaction Scores:**

- **Has the product been a good partner in doing business?:** 9.5/10 (Category avg: 9.3/10)
- **Advanced Threat Protection (ATP):** 9.3/10 (Category avg: 9.0/10)
- **Anti-Phishing:** 9.4/10 (Category avg: 9.2/10)
- **Quarantine:** 9.2/10 (Category avg: 9.1/10)


**Seller Details:**

- **Seller:** [Cloudflare, Inc.](https://www.g2.com/sellers/cloudflare-inc)
- **Year Founded:** 2009
- **HQ Location:** San Francisco, California
- **Twitter:** @Cloudflare (276,983 Twitter followers)
- **LinkedIn® Page:** https://www.linkedin.com/company/407222/ (6,898 employees on LinkedIn®)
- **Ownership:** NYSE: NET

**Reviewer Demographics:**
  - **Top Industries:** Information Technology and Services, Computer & Network Security
  - **Company Size:** 37% Small-Business, 34% Mid-Market


#### Pros & 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)

  ### 9. [Acronis Cyber Protect Cloud](https://www.g2.com/products/acronis-cyber-protect-cloud/reviews)
  Acronis delivers the world’s most complete cyber resilience platform, combining backup, disaster recovery, cybersecurity, RMM, and business operations tools into a single, natively integrated solution. Built specifically for Managed Service Providers (MSPs) and IT teams, Acronis simplifies operations with one agent, one console, and one license model. Automation, AI-driven insights, and multi-tenant management ensure that fewer technicians can manage more clients at lower cost. With predictable pricing and transparent billing, Acronis enables partners and IT teams to scale efficiently, comply with regulations, and deliver unmatched resilience. No other vendor delivers this level of integration, efficiency, and MSP alignment. Acronis Cyber Protect Cloud unites backup and next-generation, AI-based anti-malware, antivirus, and endpoint protection management in one solution. Integration and automation provide unmatched ease for service providers — reducing complexity while increasing productivity and decreasing operating costs. Acronis Cyber Protect Cloud is the single service provider solution that combines backup, anti-malware (including anti-virus, anti-ransomware, and anti-cryptojacking) and security and management capabilities such as vulnerability assessments, patch management, URL filtering and more. Now, service providers can eliminate complexity and make security a centerpiece of their offerings while increasing SLAs, decreasing churn, and generating more recurring revenue. Get upgraded security with integrated AI-based defenses that protect clients from modern threats, make smarter use of resources so your team can focus on clients, and earn new recurring revenue and higher margins that strengthen your business. Enriched with next-gen, full-stack anti-malware protection and comprehensive yet simple management tools, built on top of our industry-leading backup and data recovery solution, Acronis Cyber Protect Cloud simplifies onboarding, daily operations, and reporting, and combats advanced attacks with new use cases enabled by integration. Acronis Cyber Protect Cloud makes it easy to deliver the modern cyber protection your clients seek. Acronis is majority-owned by EQT.


  **Average Rating:** 4.7/5.0
  **Total Reviews:** 1,260

**User Satisfaction Scores:**

- **Has the product been a good partner in doing business?:** 9.3/10 (Category avg: 9.3/10)
- **Advanced Threat Protection (ATP):** 9.2/10 (Category avg: 9.0/10)
- **Anti-Phishing:** 9.2/10 (Category avg: 9.2/10)
- **Quarantine:** 9.1/10 (Category avg: 9.1/10)


**Seller Details:**

- **Seller:** [Acronis](https://www.g2.com/sellers/acronis)
- **Company Website:** https://www.acronis.com/
- **Year Founded:** 2003
- **HQ Location:** Schaffhausen
- **Twitter:** @acronis (94,780 Twitter followers)
- **LinkedIn® Page:** https://www.linkedin.com/company/13179/ (1,917 employees on LinkedIn®)

**Reviewer Demographics:**
  - **Who Uses This:** CEO, Director
  - **Top Industries:** Information Technology and Services, Computer & Network Security
  - **Company Size:** 68% Small-Business, 28% Mid-Market


#### Pros & Cons

**Pros:**

- Ease of Use (217 reviews)
- Backup Solutions (213 reviews)
- Backup Ease (169 reviews)
- Protection (159 reviews)
- Security (158 reviews)

**Cons:**

- Slow Performance (77 reviews)
- Expensive (65 reviews)
- Complexity (53 reviews)
- Poor Customer Support (50 reviews)
- Backup Issues (41 reviews)

  ### 10. [Mimecast Advanced Email Security](https://www.g2.com/products/mimecast-advanced-email-security/reviews)
  Email Security, Cloud Integrated (CI) protects organizations against all forms of email-based attacks, from phishing and credential theft to ransomware and zero-day threats. This solution deploys behind M365 to collect emails after they have passed through Microsoft security, reinspect them, and take action as needed. With a setup time of just four minutes and out-of-the-box settings designed to optimize security immediately, Email Security CI delivers best-in-class efficacy in the simplest way possible. Customers get the full power of Mimecast’s AI-powered detection and threat intelligence in a solution built for the reality of navigating today’s hostile threat landscape with limited time and resources. Email Security CI also offers a fully integrated Awareness Training solution to help organizations easily and effectively reduce the risk of human error.


  **Average Rating:** 4.4/5.0
  **Total Reviews:** 312

**User Satisfaction Scores:**

- **Has the product been a good partner in doing business?:** 8.7/10 (Category avg: 9.3/10)
- **Advanced Threat Protection (ATP):** 8.8/10 (Category avg: 9.0/10)
- **Anti-Phishing:** 8.8/10 (Category avg: 9.2/10)
- **Quarantine:** 9.0/10 (Category avg: 9.1/10)


**Seller Details:**

- **Seller:** [Mimecast](https://www.g2.com/sellers/mimecast)
- **Company Website:** https://www.mimecast.com/
- **Year Founded:** 2003
- **HQ Location:** London
- **Twitter:** @Mimecast (18,056 Twitter followers)
- **LinkedIn® Page:** https://www.linkedin.com/company/55895/ (2,467 employees on LinkedIn®)

**Reviewer Demographics:**
  - **Who Uses This:** IT Manager, Systems Administrator
  - **Top Industries:** Legal Services, Information Technology and Services
  - **Company Size:** 68% Mid-Market, 17% Enterprise


#### Pros & Cons

**Pros:**

- Email Security (49 reviews)
- Ease of Use (44 reviews)
- Security (34 reviews)
- Features (26 reviews)
- Spam Blocking (25 reviews)

**Cons:**

- Complexity (21 reviews)
- Email Filtering Issues (17 reviews)
- Email Issues (16 reviews)
- Configuration Difficulties (15 reviews)
- False Positives (15 reviews)

  ### 11. [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:** 540

**User Satisfaction Scores:**

- **Has the product been a good partner in doing business?:** 9.8/10 (Category avg: 9.3/10)
- **Advanced Threat Protection (ATP):** 9.5/10 (Category avg: 9.0/10)
- **Anti-Phishing:** 9.6/10 (Category avg: 9.2/10)
- **Quarantine:** 9.6/10 (Category avg: 9.1/10)


**Seller Details:**

- **Seller:** [Paubox](https://www.g2.com/sellers/paubox)
- **Year Founded:** 2015
- **HQ Location:** San Francisco, CA
- **Twitter:** @PauboxHQ (16,587 Twitter followers)
- **LinkedIn® Page:** https://www.linkedin.com/company/4821384/ (49 employees on LinkedIn®)

**Reviewer Demographics:**
  - **Who Uses This:** Owner, CEO
  - **Top Industries:** Mental Health Care, Hospital & Health Care
  - **Company Size:** 83% Small-Business, 15% Mid-Market


#### Pros & Cons

**Pros:**

- Ease of Use (218 reviews)
- Security (176 reviews)
- Customer Support (147 reviews)
- Email Security (139 reviews)
- Setup Ease (138 reviews)

**Cons:**

- Expensive (51 reviews)
- Email Issues (32 reviews)
- Difficult Setup (25 reviews)
- Email Encryption Issues (18 reviews)
- Encryption Issues (13 reviews)

  ### 12. [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

**User Satisfaction Scores:**

- **Has the product been a good partner in doing business?:** 8.6/10 (Category avg: 9.3/10)
- **Advanced Threat Protection (ATP):** 8.6/10 (Category avg: 9.0/10)
- **Anti-Phishing:** 8.8/10 (Category avg: 9.2/10)
- **Quarantine:** 8.5/10 (Category avg: 9.1/10)


**Seller Details:**

- **Seller:** [Kaseya](https://www.g2.com/sellers/kaseya)
- **Year Founded:** 2000
- **HQ Location:** Miami, FL
- **Twitter:** @KaseyaCorp (17,431 Twitter followers)
- **LinkedIn® Page:** https://www.linkedin.com/company/kaseya/ (5,512 employees on LinkedIn®)

**Reviewer Demographics:**
  - **Top Industries:** Information Technology and Services, Computer & Network Security
  - **Company Size:** 44% Small-Business, 38% Mid-Market


#### Pros & 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)

  ### 13. [Proofpoint Targeted Attack Protection For Email](https://www.g2.com/products/proofpoint-targeted-attack-protection-for-email/reviews)
  Proofpoint Targeted Attack Protection (TAP) helps organizations efficiently detect, mitigate and respond to known and unknown advanced threats that target people and VIPs through email. TAP provides unparalleled effectiveness in stopping targeted attacks that use polymorphic malware, weaponized documents and credential-stealing phishing techniques to obtain sensitive information. TAP seamlessly integrates with the Proofpoint secure email gateway (Proofpoint Email Protection) to deliver best-in-class email security in a way that is cost effective and easy to use. TAP leverages the cloud to scale deployment, adapt analysis and protect people on any network or device. With Proofpoint Targeted Attack Protection (TAP), you can: • Provide sophisticated analysis to prevent threats from getting to a user's inbox. • Detect known and unknown threats using adaptable analysis capabilities. • Provide security teams detailed analysis and visibility about threats and threat campaigns. • Provide visibility into threats targeting the Very Attacked People (VAP) in an organization.


  **Average Rating:** 4.7/5.0
  **Total Reviews:** 37

**User Satisfaction Scores:**

- **Has the product been a good partner in doing business?:** 9.0/10 (Category avg: 9.3/10)
- **Advanced Threat Protection (ATP):** 10.0/10 (Category avg: 9.0/10)
- **Anti-Phishing:** 10.0/10 (Category avg: 9.2/10)
- **Quarantine:** 10.0/10 (Category avg: 9.1/10)


**Seller Details:**

- **Seller:** [Proofpoint](https://www.g2.com/sellers/proofpoint)
- **Year Founded:** 2002
- **HQ Location:** Sunnyvale, CA
- **Twitter:** @proofpoint (31,141 Twitter followers)
- **LinkedIn® Page:** https://www.linkedin.com/company/proofpoint (5,020 employees on LinkedIn®)
- **Ownership:** NASDAQ: PFPT

**Reviewer Demographics:**
  - **Top Industries:** Hospital & Health Care
  - **Company Size:** 69% Enterprise, 26% Mid-Market


  ### 14. [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

**User Satisfaction Scores:**

- **Has the product been a good partner in doing business?:** 8.2/10 (Category avg: 9.3/10)
- **Advanced Threat Protection (ATP):** 8.5/10 (Category avg: 9.0/10)
- **Anti-Phishing:** 9.3/10 (Category avg: 9.2/10)
- **Quarantine:** 8.6/10 (Category avg: 9.1/10)


**Seller Details:**

- **Seller:** [Broadcom](https://www.g2.com/sellers/broadcom-ab3091cd-4724-46a8-ac89-219d6bc8e166)
- **Year Founded:** 1991
- **HQ Location:** San Jose, CA
- **Twitter:** @broadcom (63,117 Twitter followers)
- **LinkedIn® Page:** https://www.linkedin.com/company/broadcom/ (55,707 employees on LinkedIn®)
- **Ownership:** NASDAQ: CA

**Reviewer Demographics:**
  - **Top Industries:** Information Technology and Services, Computer & Network Security
  - **Company Size:** 39% Enterprise, 38% Mid-Market


  ### 15. [Proofpoint Adaptive Email Security](https://www.g2.com/products/proofpoint-adaptive-email-security/reviews)
  The Tessian Cloud Email Security Platform intelligently protects against advanced threats and data loss on email, while reducing security teams' workloads, and coaching people about security threats in the moment. Using Behavioral Intelligence Modeling and machine learning, Tessian automatically detects and prevents threats that legacy Secure Email Gateways fail to stop, including advanced phishing attacks, email impersonation, accidental data loss and insider threats. We ensure security teams can work smarter, not harder. Tessian automates the investigation and remediation of email threats, freeing up the security team's time and in-the-moment security coaching educates users in real-time to help them make more informed security decisions. As a cloud-native solution, Tessian Security Platform integrates seamlessly with Microsoft 365, Microsoft Exchange, and Google Workspace environments. Tessian is a fully automated platform that requires zero configuration, is deployed in minutes, and learns people’s email behaviors within hours, closing critical security gaps in the enterprise security stack. Email is the number one threat vector in the enterprise, and security teams can no longer rely on traditional email security solutions to keep their organization safe. Tessian’s intelligent technology stops advanced threats and prevents data loss, strengthening email security and building a stronger security culture.


  **Average Rating:** 4.6/5.0
  **Total Reviews:** 45

**User Satisfaction Scores:**

- **Has the product been a good partner in doing business?:** 9.3/10 (Category avg: 9.3/10)
- **Advanced Threat Protection (ATP):** 8.9/10 (Category avg: 9.0/10)
- **Anti-Phishing:** 9.3/10 (Category avg: 9.2/10)
- **Quarantine:** 8.9/10 (Category avg: 9.1/10)


**Seller Details:**

- **Seller:** [Proofpoint](https://www.g2.com/sellers/proofpoint)
- **Year Founded:** 2002
- **HQ Location:** Sunnyvale, CA
- **Twitter:** @proofpoint (31,141 Twitter followers)
- **LinkedIn® Page:** https://www.linkedin.com/company/proofpoint (5,020 employees on LinkedIn®)
- **Ownership:** NASDAQ: PFPT

**Reviewer Demographics:**
  - **Top Industries:** Financial Services, Legal Services
  - **Company Size:** 58% Mid-Market, 42% Enterprise


#### Pros & Cons

**Pros:**

- Customer Support (1 reviews)
- Ease of Use (1 reviews)
- Features (1 reviews)
- Product Quality (1 reviews)
- Protection (1 reviews)

**Cons:**

- Expensive (1 reviews)

  ### 16. [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:** 375

**User Satisfaction Scores:**

- **Has the product been a good partner in doing business?:** 9.4/10 (Category avg: 9.3/10)
- **Anti-Phishing:** 10.0/10 (Category avg: 9.2/10)
- **Quarantine:** 10.0/10 (Category avg: 9.1/10)


**Seller Details:**

- **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 (1,958 Twitter followers)
- **LinkedIn® Page:** https://www.linkedin.com/company/cybersentriq/ (194 employees on LinkedIn®)

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


#### Pros & 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)



## Parent Category

[Email Security Software](https://www.g2.com/categories/email-security)



## Related Categories

- [Secure Email Gateway Software](https://www.g2.com/categories/secure-email-gateway)
- [Email Anti-spam Software](https://www.g2.com/categories/email-anti-spam)
- [Intelligent Email Protection Software](https://www.g2.com/categories/intelligent-email-protection)



---

## Buyer Guide

### What You Should Know About Cloud Email Security Software

### What is Cloud Email Security Software?

Using cloud email security software, companies can protect their systems from unwanted emails or malicious email threats. Cloud email security software tools detect and quarantine unwanted emails including those containing spam and bulk emails; malware, ransomware, spyware, and other viruses in malicious links or attachments; phishing and spear-phishing attempts; C-level executive impersonation attacks; advanced targeted attacks; and more. Cloud email security software may also provide other features such as email archiving, email encryption, and data loss prevention functions for outgoing email.

Cloud email security software shares similarities with [secure email gateways](https://www.g2.com/categories/secure-email-gateway), which are designed to protect on-premises email. Cloud email security software, alternatively, is designed to protect cloud-based email environments and does not require on-premises hardware installations.

Key Benefits of Cloud Email Security Software

- Offer a cloud-based, rather than on-premises, email security solution
- Include anti-spam, anti-malware, and anti-phishing capabilities
- Detect and quarantine suspicious emails, including links and attachments

### Why Use Cloud Email Security Software?

Cloud email security software helps companies protect their cloud-based email communications. Email is one of the most commonly used points of entry hackers use to gain access to corporate systems or to trick recipients into divulging sensitive information; often, these attacks lead to information or financial losses and reputational damage. Cloud email security software protects against email-focused attacks by blocking or quarantining suspicious emails. Given many companies have migrated from on-premises to cloud-based email solutions, the tools to secure their email need to evolve to face new threats emerging every day.

In particular, cloud email security software protects against spam, malware, and phishing attacks. Malware attacks, which often originate from emails with malicious links or attachments that unsuspecting users click or open. Malware can include ransomware, spyware, or other viruses. Ransomware encrypts company files and demands a random to decrypt them. Spyware usually sits silently on company systems stealing sensitive information such as intellectual property or trade secrets. Other viruses seek to embarrass companies and can damage a company’s brand and reputation. For example, a virus that sends an email to all of the user’s contacts, would fall in this category.

Cloud email security software also protects against social-engineering attacks such as phishing, spear-phishing, and c-level executive impersonation attacks. Phishing attacks are emails sent in bulk aiming to get employees to divulge information, such as sensitive financial information. Spear-phishing is a type of phishing that is targeted to a specific individual; in spear-phishing attacks, hackers spend time getting to know the targeted employee’s habits and preferences in order to send a personalized malicious email. The newest kind of phishing attacks are known as “impersonation attacks," which are often emails sent to company employees impersonating C-level executives which ask employees to make large financial transactions or purchases.

Additionally, companies use cloud email security software to meet regulatory compliance regarding data protection. Most notably, data loss prevention functions in cloud email security solutions help prevent data leakage on outgoing emails. For example, hacked email accounts (known as account takeover) can email out sensitive information. A less sinister example would be when a legitimate employee mistakenly sends out sensitive information such as personally identifiable information (PII), Social Security numbers, credit card numbers, and other confidential data. Additionally, when a breach occurs, reporting functions in the cloud email security software can assist IT administrators in understanding which accounts were impacted in the incident.

### Who Uses Cloud Email Security Software?

All companies that use email systems, whether on-premises or cloud-based, should have an email security tool in place. Cloud email security software is used to protect cloud-based email systems. Typically, a company's IT administrators manage the deployment and monitoring of these tools. Using cloud-based solutions instead of on-premises solutions, IT administrators can save time by not patching software or hardware.

### Cloud Email Security Software Features

At minimum, cloud email security software offers advanced filtering functionality and rule-based actions to prevent email-based spam, malware, viruses, and phishing attempts. Many cloud email security software providers include additional functionality including advanced threat protection, encryption, and data loss prevention tools, among others.

**Anti-spam —** This functionality prevents unwanted emails (bulk, mass, or other junk emails) from reaching recipients mailboxes. Filtering out spam emails can improve employee productivity, because employees are not sifting through unwanted emails.

**Anti-malware —** This feature prevents emails with malicious links or attachments embedded with malware (ransomware, spyware, other viruses, etc.) from reaching email recipients.

**Anti-phishing —** This functionality helps prevent social engineering attacks such as phishing, spear-phishing, and C-level executive impersonation attacks.

**Filtering functionality —** With filters, IT administrators can allow and prevent the delivery of certain kinds of emails to end users. Filters can include: approved senders, approved lists, greylists such as bulk emails that may not be malicious, blocked senders, blocklists, IP reputation, content (such as profanity, credit card numbers, password protected files, and other sensitive information), virus detection, redirects and malicious URLs, newsletter detection, attachment size, and invalid recipients.

**Rule-based actions —** Using rule-based actions, the cloud email security software can automatically block, delete, route to, tag a subject, copy an administrator, and redirect emails to another email address, among other actions.

**Granular search functionality —** Cloud email security solutions enable IT administrators to locate specific emails using granular search functionality. Users can narrow emails down from sender, recipient, content, and many other factors.

**User groups settings —** With user group settings, IT administrators can easily manage users by assigning them to groups and applying group settings.

**Reporting —** One of the major benefits of using cloud email security software is the ability to create reports to understand unique threats over time. Many cloud email security solutions provide incident logging with granular detail, which is required for regulatory compliance. Reports often come in PDF or CSV formats.

**Dashboards (administrator and end-user) —** Cloud email security solutions offer dashboards for administrators to manage their company’s email security, as well as quarantine dashboard for end users to review suspicious email activity related to their user account.

#### Additional Cloud Email Security Features

**Advanced threat protection —** As email-borne threats become more sophisticated, so must the security tools needed to thwart these attacks. Many cloud email security solutions include further security tools, providing an additional layer of protection on top of standard anti-spam, anti-malware, and anti-phishing functions. Advanced threat protections often include machine learning to conduct abnormal behavioral analysis, display name spoof detection (especially regarding C-level impersonation attacks), detecting lookalike email domains that are visually confusing (such as the letters “RN" looking like the letter “M" when in lowercase. Example, “name@ernail.com" visually looks like “name@email.com"), compromised email account detection, and other anomalies.

**Embedded data loss protection —** While cloud email security is mostly concerned with ensuring the safety of incoming mail, some tools monitor outgoing mail, as well. Monitoring can prevent employees from sending sensitive information externally via email. Monitoring can also include things such as ensuring employees do not use profanity or other non-approved language in their emails to prevent reputational damage.

**Multi-language —** Some cloud email security software providers support email analysis in multiple languages and allow custom dictionaries.

**Embedded encryption —** Some cloud email security solutions offer embedded encryption functions, which apply encryption to a company’s outgoing emails based on specific policies.

**Archiving —** Some cloud email security solutions also offer archiving solutions, which are helpful for companies in regulated industries to properly store, secure, and search emails as needed.

Other Features of Cloud Email Security [Solutions: Account takeover prevention](https://www.g2.com/categories/cloud-email-security/f/account-takeover-prevention), [Advanced threat protection (ATP)](https://www.g2.com/categories/cloud-email-security/f/advanced-threat-protection-atp)

### Trends Related to Cloud Email Security Software

Given that email remains an effective and preferred attack vector for hackers, deploying an email security solution is a must. For companies utilizing an on-premises email solution, secure email gateways act as a firewall preventing spam and other unwanted emails from entering the perimeter. But as companies shift from on-premises to cloud-based email providers, security must evolve with it. Cloud email security is designed to meet the needs of cloud-based email services and the increased connectivity those solutions provide. Cloud email security tools often offer advanced threat protection, which uses machine learning to respond to ever-evolving threats and can scan for malicious emails within the perimeter.

### Software and Services Related to Cloud Email Security Software

[**Security awareness training software**](https://www.g2.com/categories/security-awareness-training) **—** Training a company’s workforce on the security threats they face via email attacks is one step of many to prevent email-borne attacks. Using security awareness training software, companies can simulate attacks or fraudulent emails to help employees better identify malicious content before encountering it in real-life scenarios.

[**Password manager software**](https://www.g2.com/categories/password-manager) **—** Password managers help protect personal data by securing and strengthening personal passwords. They allow users to create strong and unique passwords for every website or application they log in to while saving the user from having to memorize each password.

[**Multi-factor authentication (MFA) software**](https://www.g2.com/categories/multi-factor-authentication-mfa) **—** MFA software helps improve security across a company by requiring additional authentication measures for access to sensitive information, systems, or applications.

[**Data loss prevention (DLP) software**](https://www.g2.com/categories/data-loss-prevention-dlp) **—** DLP tools prevent sensitive information, such as intellectual property, financial information, and customer sensitive data from being sent externally. Some cloud email security software providers offer native data loss prevention functionality for outbound emails, but DLP tools are also offered as a standalone product and can apply to other communication platforms besides emails, such as instant messaging and collaboration platforms.

[**Secure email gateway software**](https://www.g2.com/categories/secure-email-gateway) **—** Secure email gateways offer similar features to cloud email security software, such as anti-spam and anti-malware functions, but are meant for on-premises deployments.

[**Email anti-spam software**](https://www.g2.com/categories/email-anti-spam) **—** Though a native feature of cloud email security solutions, email anti-spam software is available as a standalone product. This is used to prevent malicious content from being delivered via email

[**Email encryption software**](https://www.g2.com/categories/email-encryption) **—** Email encryption is an embedded feature of many cloud email security solutions, but is also available as a standalone product. Email encryption is used to ensure data in transit remains secure until the authorized party is identified

[**Cloud access security broker (CASB) software**](https://www.g2.com/categories/cloud-access-security-broker-casb) **—** CASB software is used to provide a layer of protection and policy enforcement for employees accessing cloud-based software. CASB solutions are also used to identify abnormal behaviors from internal actors.

[**Cloud file security software**](https://www.g2.com/categories/cloud-file-security) **—** Cloud file security software is used to secure information stored within cloud-based (SaaS) applications.

[**Website security software —**](https://www.g2.com/categories/website-security)Website security software is designed to protect business websites from a number of internet-based threats.