Best Email Anti-spam Software - Page 6

How Many Email Anti-spam Software Products Does G2 Track?

Total Products under this Category: 119

Category Stats (Sep 2026)

  • Average Rating: 4.46/5 The average rating of products in this category, based on all submitted ratings
  • Top Trending Product: Trellix Email Security (+0.54%) - Among all products in this category, Trellix Email Security recorded the largest rating increase compared to last month

Last updated: September 26, 2026

How Does G2 Rank Email Anti-spam Software Products?

Why You Can Trust G2's Software Rankings:

  • 30 Analysts and Data Experts
  • 6,500+ Authentic Reviews
  • 119+ 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.

G2 Grid® for Email Anti-spam Software

G2 Grid® for Email Anti-spam Software plotting products by satisfaction and market presence

Highlighted products: Proofpoint Core Email Protection, Check Point Email Security, Microsoft Defender for Office 365, Valimail, SaneBox, Abnormal AI, Paubox, and LibraCyber Email Security.

Underlying data: [Grid® JSON](https://www.g2.com/categories/email-anti-spam/grids.json?focus%5B%5D=proofpoint-core-email-protection&focus%5B%5D=check-point-email-security&focus%5B%5D=microsoft-microsoft-defender-for-office-365&focus%5B%5D=valimail&focus%5B%5D=sanebox&focus%5B%5D=abnormal-ai&focus%5B%5D=paubox&focus%5B%5D=libracyber-email-security)

VIPRE Email Cloud Add-on Solutions

VIPRE Email Cloud Add-on Solutions enhance the core capabilities of VIPRE's Email Security Cloud Edition by providing advanced features that bolster email protection and compliance. These add-ons are designed to address specific challenges in email security, ensuring comprehensive defense against evolving threats. Key Features and Functionality: - Attachment Sandboxing: This feature inspects email attachments in a secure virtual environment, detecting and neutralizing malicious payloads before they reach the recipient. - Email Archiving: Offers long-term storage of inbound and outbound emails, facilitating quick retrieval and compliance with regulatory requirements. - Email Encryption: Ensures the confidentiality of email communications by encrypting messages and attachments, accessible only through a secure portal by intended recipients. - Phishing Protection: Safeguards against deceptive emails containing malicious links by examining and neutralizing threats, even if the links become harmful after the email is received. Primary Value and User Solutions: VIPRE Email Cloud Add-on Solutions provide organizations with enhanced tools to combat sophisticated email threats, ensuring data integrity and regulatory compliance. By integrating these add-ons, businesses can proactively address vulnerabilities, protect sensitive information, and maintain uninterrupted communication channels. This comprehensive approach to email security empowers organizations to stay ahead of cyber threats and safeguard their digital assets effectively.

Average Rating: 4.0/5.0

Total Reviews: 1

Who Is the Company Behind VIPRE Email Cloud Add-on Solutions?

  • Seller: VIPRE Security
  • Year Founded: 1994
  • HQ Location: Clearwater, FL
  • Twitter: @VIPRESecurity
    8,293 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    238 employees on LinkedIn®

Who Uses This Product?

  • Company Size: 100% Large

What Are Recent G2 Reviews of VIPRE Email Cloud Add-on Solutions?

What Are G2 Users Discussing About VIPRE Email Cloud Add-on Solutions?

AegisAI Security

AegisAI is an API-based email security platform purpose-built for Microsoft 365 and Google Workspace. The platform utilizes autonomous AI agents to evaluate inbound mail across identity signals, sender behavior, and language intent. This multi-layered analysis enables the detection of highly sophisticated threats that often bypass traditional security gateways, specifically AI-powered spearphishing, compromised vendor accounts, and complex business email compromise (BEC). Rather than relying on static signatures, AegisAI analyzes user intent in every interaction. By understanding the unique communication patterns between specific senders and recipients, the platform identifies the subtle anomalies—such as shifts in urgency, tone, or phrasing—that signal a hijacked conversation or an impersonation attempt. Deployment is lightweight and non-disruptive, connecting directly via mail APIs without requiring MX record changes or altering mail flow. Beyond advanced social engineering, AegisAI provides comprehensive, native protection against phishing, malicious attachments, and zero-day malware. Its self-learning model also functions as an intelligent filter to neutralize persistent spam and promotional noise, ensuring a clean and secure inbox for both general users and high-target executives. This specialized filtering reduces the "alert fatigue" that often distracts SOC teams from high-priority security events. AegisAI leverages agentic investigation to secure every layer of the inbox, providing a robust defense against Account Takeover (ATO) attempts and Data Loss Prevention (DLP) risks. Unlike traditional tools that rely on basic reputation checks, AegisAI provides security teams with advanced AI forensics and actionable intelligence. Every detection—from a suspicious file to a subtle impersonation attempt—is supported by a clear evidence trail. This allows SOC teams to resolve the specific "blind spots" found in modern social engineering while maintaining total visibility into the evolving trust dynamics of their organization. By deploying a self-configuring control plane, AegisAI automates the remediation process, ensuring that once a threat is identified, it is neutralized across the entire enterprise instantly.

Who Is the Company Behind AegisAI Security?

BAE Systems Email Security

Email Security (AV/AS) from BAE Systems reduces risk exposure and corporate liability by safeguarding emails with anti-virus and anti-spam technologies that block malicious software and spam at the gateway.

Who Is the Company Behind BAE Systems Email Security?

  • Seller: BAE Systems
  • Year Founded: 2016
  • HQ Location: Falls Church, US
  • Twitter: @BAES_Careers
    1,914 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    17,268 employees on LinkedIn®
  • Ownership: LON: BA

Bulletproof Inbox

Bulletproof Inbox is a Gmail and Outlook email solution that optimizes your email experience by eliminating unwanted email. Our access control technology sits between your inbox and the sender, and allows only Approved Senders into your inbox. Unwanted emails are blocked, while new / unknown email is quarantined into an evaluating folder for later review. It's simple. There's no need for a new email, app or interface. Just manage your email as you normally would.

Who Is the Company Behind Bulletproof Inbox?

Carrierzone

Carrierzone provides email abuse management solutions.

Who Is the Company Behind Carrierzone?

Cloudmark Authority

Cloudmark Authority provides the fastest and most accurate messaging security in the industry for mobile operators, internet service providers, and hosting providers.

Who Is the Company Behind Cloudmark Authority?

  • Seller: Proofpoint
  • Year Founded: 2002
  • HQ Location: Sunnyvale, CA
  • Twitter: @proofpoint
    31,157 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    5,261 employees on LinkedIn®
  • Ownership: NASDAQ: PFPT

Cloudphish

Cloudphish is an anti-phishing software company based in Billerica, MA. Cloudphish is easy to install and protects your employees and customers from dangerous impersonation emails using the power of blockchain. Our software sends clear, visual feedback in the email header to alert users to any potential threats posed by an incoming message - in-context and in real-time. Cloudphish easily integrates with any existing email security software, working as the last line of defense to stop sophisticated phishing emails. Our plugin-based software works with Gmail and Outlook.com and all major browsers and devices. https://www.youtube.com/watch?v=8KWTQhpHdIw

Who Is the Company Behind Cloudphish?

Cloud Protect

Easiest to use email and account security for your small business. Never get hacked again with real-time breach detection, email spam filtering and hands-on managed security from a tier 1 Microsoft Partner. Real-time breach detection is monitored by our security experts. Get recommendations every month on how to improve your security with included support from our security experts. Automatically have spam moved to your Junk folder and emails scanned for viruses by adding the Spam Filter add-on.

Who Is the Company Behind Cloud Protect?

  • Seller: RyanTech
  • Year Founded: 1999
  • HQ Location: Modesto, US
  • LinkedIn® Page: www.linkedin.com
    22 employees on LinkedIn®

Cofense Vision

Cofense provides phishing mitigation and detection for organizations.

Who Is the Company Behind Cofense Vision?

  • Seller: PhishMe
  • Year Founded: 2011
  • HQ Location: Leesburg, Virginia, United States
  • LinkedIn® Page: www.linkedin.com
    303 employees on LinkedIn®

ContentCatcher

ContentCatcher secure the business against phishing, spam, malware, malicious URLs and attachments with GDPR compliant,.

Who Is the Company Behind ContentCatcher?

Cyber Security Software

Cyber Defender is your one-stop for all your cybersecurity needs. Our platform puts an end to the constant worry and ensures peace of mind when it comes to protecting your business. “I was looking for something easy to roll out and manage. Cyber Defender makes it so easy to do. It's a complete solution, including cloud and endpoints." Tiffany L., Business Owner

Who Is the Company Behind Cyber Security Software?

Datatune Spam Filtering

Datatune's hosted antispam solution is a cloud-based email security tool.

Who Is the Company Behind Datatune Spam Filtering?

Deep Discovery Email Inspector

Deep Discovery Email Inspector detects and blocks ransomware spear phishing emails through advanced analysis techniques for known and unknown attacks.

Who Is the Company Behind Deep Discovery Email Inspector?

  • Seller: TrendAI
  • Year Founded: 1988
  • HQ Location: Tokyo
  • LinkedIn® Page: www.linkedin.com
    7,996 employees on LinkedIn®
  • Ownership: OTCMKTS:TMICY
  • Total Revenue (USD mm): $1,515

What Are G2 Users Discussing About Deep Discovery Email Inspector?

Diadem Advanced Email Anti Spam

Diadem's Advanced Email Anti-Spam solution is a comprehensive, cloud-based service designed to protect organizations from a wide range of email threats, including spam, viruses, phishing attempts, and malware. By integrating seamlessly with existing email infrastructures, it ensures that inbound and outbound communications remain secure, maintaining both network integrity and company reputation. The solution offers high filtering accuracy with minimal false positives, enhancing overall email reliability. Key Features and Functionality: - Inbound and Outbound Filtering: Effectively filters incoming and outgoing emails to prevent spam, viruses, and malicious attachments from entering or leaving the network. - Advanced Antivirus and Anti-Malware Protection: Utilizes cutting-edge scanning technologies to detect and neutralize threats before they reach the inbox. - High Filtering Accuracy: Employs proprietary IP-reputation systems and multiple content classifiers to achieve nearly 100% filtering accuracy with a very low false-positive rate. - Email Continuity: Ensures uninterrupted email access by queuing messages during server downtimes and automatically delivering them once the server is back online. - Comprehensive Reporting and Management: Provides detailed logs, web-based and IMAP-based quarantine access, and advanced filtering statistics for efficient monitoring and management. - Seamless Integration: Compatible with various mail servers, including Exchange, Zimbra, Postfix, Exim, qmail, and Lotus, and integrates with leading control panels. Primary Value and Problem Solved: Diadem's Advanced Email Anti-Spam solution addresses the critical need for robust email security in organizations. By effectively filtering out spam and malicious content, it safeguards networks from potential threats, reduces the risk of IP blacklisting, and maintains the organization's reputation. The solution also enhances employee productivity by minimizing the time spent dealing with unwanted emails and reduces infrastructure load by decreasing the volume of spam processed by internal servers. Additionally, its fully managed service simplifies email security management, allowing IT resources to focus on other strategic initiatives.

Who Is the Company Behind Diadem Advanced Email Anti Spam?

Elpha Secure

Elpha Secure offers an integrated cyber protection solution tailored for small and midsize businesses, combining advanced cybersecurity software with comprehensive cyber insurance coverage. This dual approach not only safeguards businesses against cyber threats but also ensures financial resilience in the event of an attack. By embedding proprietary security technology within each policy, Elpha Secure simplifies the process of obtaining and maintaining robust cyber defense, making it accessible and affordable for businesses that may lack extensive IT resources. Key Features and Functionality: - Comprehensive Cyber Insurance: Coverage includes protection against ransomware, data restoration, business interruption, cybercrime, hardware replacement, and network security and privacy liabilities. - Advanced Cybersecurity Software: Features encompass real-time threat monitoring, automated data backups, secure remote access with multi-factor authentication, and endpoint detection and response. - User-Friendly Platform: The solution offers a streamlined interface for managing security alerts, software updates, and policy details, ensuring ease of use for businesses without dedicated IT teams. - Rapid Deployment: Businesses can receive quotes in minutes through an AI-powered underwriting process and implement the security software swiftly with single-click installation. - 24/7 Expert Support: Access to a dedicated Security Operations Center ensures continuous monitoring and prompt assistance during incidents. Primary Value and Problem Solved: Elpha Secure addresses the critical need for small and midsize businesses to protect themselves against the increasing prevalence of cyberattacks. By integrating cybersecurity measures directly into the insurance policy, it reduces the complexity and cost associated with managing separate security solutions and insurance coverage. This holistic approach not only enhances a business's security posture but also ensures financial protection, thereby reducing the likelihood of operational disruptions and financial losses due to cyber incidents. Ultimately, Elpha Secure empowers businesses to operate confidently in the digital landscape, knowing they are comprehensively protected against evolving cyber threats.

Who Is the Company Behind Elpha Secure?

Lauren Worth
LW
Researched and written by Lauren Worth
Updated October 3, 2024