Best Email Anti-spam Software - Page 6

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

Total Products under this Category: 144

Category Stats (Nov 2026)

  • Average Rating: 4.46/5 The average rating of products in this category, based on all submitted ratings
  • Top Trending Product: Darktrace / EMAIL (+0.63%) - Among all products in this category, Darktrace / EMAIL recorded the largest rating increase compared to last month

Last updated: November 01, 2026

How Does G2 Rank Email Anti-spam Software Products?

Why You Can Trust G2's Software Rankings:

  • 30 Analysts and Data Experts
  • 6,400+ Authentic Reviews
  • 144+ 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, Valimail, Abnormal AI, Paubox, Microsoft Defender for Office 365, SaneBox, 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=valimail&focus%5B%5D=abnormal-ai&focus%5B%5D=paubox&focus%5B%5D=microsoft-microsoft-defender-for-office-365&focus%5B%5D=sanebox&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?

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
  • LinkedIn® Page: www.linkedin.com
    17,268 employees on LinkedIn®
  • Ownership: LON: BA

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How it works

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?

Cisco Secure Email Threat Defense

Cisco Email Security protects against ransomware, business email compromise, spoofing, and phishing.

Average Rating: 4.3/5.0

Total Reviews: 26

How Do G2 Users Rate Cisco Secure Email Threat Defense?

  • Has the product been a good partner in doing business?: 9.6/10 (Category avg: 9.1/10)
  • Quality of Support: 8.9/10 (Category avg: 9.0/10)
  • Ease of Admin: 9.0/10 (Category avg: 8.9/10)
  • Ease of Use: 8.4/10 (Category avg: 9.0/10)

Who Is the Company Behind Cisco Secure Email Threat Defense?

  • Seller: Cisco
  • Year Founded: 1984
  • HQ Location: San Jose, CA
  • LinkedIn® Page: www.linkedin.com
    95,294 employees on LinkedIn®
  • Ownership: NASDAQ:CSCO
  • Phone: 847-678-6600

Who Uses This Product?

  • Top Industries: Information Technology and Services
  • Company Size: 50% Medium, 32% Large

What Are Recent G2 Reviews of Cisco Secure Email Threat Defense?

What Are G2 Users Discussing About Cisco Secure Email Threat Defense?

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
  • 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®

Conbool

Conbool is a multi-tenant email security platform that turns standard business email into a secure, compliant and brand-safe communication channel. It combines automatic S/MIME and PGP encryption including certificate management, a secure message portal, AI-powered spam and threat protection and centralized email signatures and disclaimers in a single gateway. Conbool is hosted in the EU or on-premises and integrates seamlessly with Microsoft 365 and existing mail servers.

Who Is the Company Behind Conbool?

  • Seller: Conbool
  • Year Founded: 2025
  • HQ Location: Hamburg, DE
  • LinkedIn® Page: www.linkedin.com
    2 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?

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