Best Email Anti-spam Software - Page 9

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)

Qboxmail

Qboxmail is a European email hosting provider based in Italy, known for developing all its Control Panels and applications entirely in-house, giving us a unique edge in customization and performance. Our service is fully white-label, empowering Partner Resellers (MSPs, Telcos, ISPs, and Hosting Providers) to seamlessly enhance their offerings with robust, professional email solutions. Over 35,000 companies across more than 40 countries trust Qboxmail, thanks to our high IP reputation for excellent deliverability and strong security systems safeguarding mailboxes from threats. We provide dedicated support and intuitive software, helping resellers set up and manage their customers’ mailboxes with minimal effort. By saving time and resources, Partners can focus on other revenue-generating activities and grow more effectively.

Average Rating: 5.0/5.0

Total Reviews: 1

How Do G2 Users Rate Qboxmail?

  • Has the product been a good partner in doing business?: 10.0/10 (Category avg: 9.1/10)
  • Quality of Support: 10.0/10 (Category avg: 9.0/10)
  • Ease of Admin: 10.0/10 (Category avg: 8.9/10)
  • Ease of Use: 10.0/10 (Category avg: 9.0/10)

Who Is the Company Behind Qboxmail?

  • Seller: Qboxmail
  • Year Founded: 2016
  • HQ Location: Prato, IT
  • LinkedIn® Page: www.linkedin.com
    15 employees on LinkedIn®

Who Uses This Product?

  • Company Size: 100% Small

What Do G2 Reviewers Say About Qboxmail?

AI-generated summary from verified user reviews

Pros
  • Users commend the excellent customer support of Qboxmail, ensuring prompt assistance and satisfaction with the service.
  • Users value the data protection measures of Qboxmail, ensuring their information remains secure and backed up effectively.
  • Users find the ease of use of Qboxmail to be intuitive and user-friendly, enhancing their overall experience.
  • Users value the malware protection of Qboxmail, providing essential security for their email communications.
  • Users value the security features of Qboxmail, ensuring their data remains safe and protected.

What Are Recent G2 Reviews of Qboxmail?

Radware Bot Manager

Radware Bot Manager protects websites, mobile apps, and APIs from malicious bots and AI threats in real-time. Using a multi-layered, AI-powered approach preemptive protection, behavioral detection, and advanced mitigation, it accurately distinguishes humans, legitimate bots, malicious bots, and AI crawlers/agents. It defends against OWASP Top 21 Automated Threats (credential stuffing, account takeovers, scraping, carding, etc.) using CAPTCHA-based and CAPTCHA-less challenges (like crypto challenges). Mobile apps receive robust protection via integrated device attestation (Android/iOS) and unique identity validation. Managed via Radware’s unified Cloud Application Protection Services portal, it integrates seamlessly with WAF, API security, client-side protection, and DDoS modules.

Average Rating: 4.6/5.0

Total Reviews: 12

How Do G2 Users Rate Radware Bot Manager?

  • Has the product been a good partner in doing business?: 10.0/10 (Category avg: 9.1/10)
  • Quality of Support: 9.1/10 (Category avg: 9.0/10)
  • Ease of Admin: 9.6/10 (Category avg: 8.9/10)
  • Ease of Use: 9.1/10 (Category avg: 9.0/10)

Who Is the Company Behind Radware Bot Manager?

  • Seller: Radware
  • Year Founded: 1997
  • HQ Location: Tel Aviv, Tel Aviv
  • LinkedIn® Page: www.linkedin.com
    1,615 employees on LinkedIn®

Who Uses This Product?

  • Company Size: 57% Small, 21% Large

What Are Recent G2 Reviews of Radware Bot Manager?

Redcoat AI

Redcoat AI is a cybersecurity company dedicated to protecting organizations from sophisticated AI-driven threats, particularly advanced social engineering attacks. Leveraging cutting-edge artificial intelligence, Redcoat AI offers a comprehensive security platform that evolves in tandem with emerging cyber threats. Their solutions are designed to safeguard individuals and systems from attacks that utilize contextual information, deepfake technology, and human-like interactions.

Who Is the Company Behind Redcoat AI?

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How it works

SafeToOpen Phishing Detection and Protection

SafeToOpen Phishing Detection and Protection is an advanced cybersecurity solution designed to proactively identify and block zero-day phishing attacks in real-time. Unlike traditional security measures that rely on databases of known threats, SafeToOpen employs cutting-edge technologies such as machine learning, computer vision, and behavioral analysis to detect and neutralize malicious websites as they emerge. This ensures comprehensive protection for businesses and their customers against rapidly evolving cyber threats. Key Features and Functionality: - Real-Time Phishing Detection: Utilizes AI-driven algorithms to instantly identify and block new phishing sites, providing immediate protection without the need for manual intervention. - Malicious Website Blocking: Proactively prevents access to dangerous and malware-infected websites, safeguarding devices and sensitive information from online attacks. - Privacy-Centric Design: Prioritizes user privacy by not collecting any Personally Identifiable Information (PII, ensuring that security measures do not compromise personal data. - Optimized Browsing Performance: Enhances browsing speed and safety by efficiently analyzing web traffic and avoiding redundant processes. - Multilingual Support and Custom Alerts: Offers support in multiple languages with customizable warning messages, providing a personalized and user-friendly experience. - Continuous Website Monitoring: For businesses, continuously monitors websites visited by the organization, providing alerts on potential threats to ensure 24/7 protection. Primary Value and Problem Solved: SafeToOpen addresses the critical challenge of zero-day phishing attacks, which traditional security solutions often fail to detect promptly. By leveraging advanced technologies, it offers real-time protection against emerging phishing threats, thereby reducing the risk of data breaches, financial loss, and reputational damage. For businesses, this means enhanced security for corporate emails and social media platforms, continuous monitoring of web traffic, and the assurance that their digital assets and customer information remain secure. For individual users, it provides peace of mind by safeguarding personal data and ensuring a safe browsing experience.

Who Is the Company Behind SafeToOpen Phishing Detection and Protection?

SecuLetter SLE

SecuLetter uses the Hybrid Analysis method to respond to evolving e-mail threats, detecting and blocking zero-day attacks.

Who Is the Company Behind SecuLetter SLE?

Spambrella - Email Threat Protection

Spambrella Email Threat Protection is a clod-based SaaS software that filters inbound and outbound email for spam, viruses, malware, phishing attacks small and medium-sized enterprises.

Average Rating: 4.3/5.0

Total Reviews: 2

How Do G2 Users Rate Spambrella - Email Threat Protection?

  • Quality of Support: 8.3/10 (Category avg: 9.0/10)
  • Ease of Use: 8.3/10 (Category avg: 9.0/10)

Who Is the Company Behind Spambrella - Email Threat Protection?

Who Uses This Product?

  • Company Size: 50% Medium, 50% Small

What Are Recent G2 Reviews of Spambrella - Email Threat Protection?

What Are G2 Users Discussing About Spambrella - Email Threat Protection?

SpamCheetah email server anti spam

SpamCheetah is an email server level spam control product that works on network level. It is available as an ISO download or VMWare appliance or a raw appliance. There is also hosted option available. It is loaded with features like URL scanning, malware filtering, virus scanning, phishing protection and so on.

Who Is the Company Behind SpamCheetah email server anti spam?

Spamdrain antispam

Spamdrain is an advanced anti-spam service designed to help users regain control over their email inboxes by effectively filtering out spam, junk mail, viruses, and phishing attempts. Compatible with various email providers and devices—including Android, iPhone, Office 365, and Yahoo—Spamdrain ensures that only legitimate emails reach your inbox, allowing you to focus on important communications without the distraction of unwanted messages. Key Features and Functionality: - AI-Powered Filtering: Utilizes sophisticated artificial intelligence algorithms to accurately detect and block spam emails, continuously improving through user feedback. - Cross-Platform Compatibility: Operates seamlessly across multiple devices and email services, including Android, iOS, Office 365, and Yahoo, providing consistent protection regardless of your platform. - Customizable Settings: Offers users the ability to tailor filtering preferences, including whitelisting or blacklisting specific senders, to suit individual needs. - Real-Time Protection: Continuously updates to defend against emerging email threats and new spam tactics, ensuring up-to-date security. - Access to Filtered Emails: Provides the option to review and retrieve blocked messages, ensuring that no legitimate emails are missed. Primary Value and User Benefits: Spamdrain addresses the common problem of inbox clutter caused by unwanted emails, saving users valuable time and reducing the risk of falling victim to phishing attacks or malware. By delivering a cleaner, more organized email experience, Spamdrain enhances productivity and ensures that users can focus on the communications that matter most.

Who Is the Company Behind Spamdrain antispam?

Spameo

Spameo is a spam blocker for Gmail.

Who Is the Company Behind Spameo?

SpamHero

SpamHero is a professional spam filtering accuracy while lowering the cost to domain and business owners.

Average Rating: 4.8/5.0

Total Reviews: 2

How Do G2 Users Rate SpamHero?

  • Has the product been a good partner in doing business?: 10.0/10 (Category avg: 9.1/10)
  • Quality of Support: 8.3/10 (Category avg: 9.0/10)
  • Ease of Admin: 8.3/10 (Category avg: 8.9/10)
  • Ease of Use: 8.3/10 (Category avg: 9.0/10)

Who Is the Company Behind SpamHero?

  • Seller: Spamhero
  • Year Founded: 2009
  • HQ Location: Henderson, US
  • LinkedIn® Page: www.linkedin.com
    2 employees on LinkedIn®

Who Uses This Product?

  • Company Size: 50% Medium, 50% Small

What Are Recent G2 Reviews of SpamHero?

What Are G2 Users Discussing About SpamHero?

Spamjadoo

Spamjadoo is the anti-spam product of Data Xgen Technologies Pvt Ltd (DXTPL). It began as an answer to a simple observation: the cheape

Who Is the Company Behind Spamjadoo?

  • Seller: XgenPlus
  • Year Founded: 2010
  • HQ Location: Jaipur, IN
  • LinkedIn® Page: www.linkedin.com
    5 employees on LinkedIn®

SpamJadoo

The Worlds First Lockable Email that Stops Spam before ever its sent

Who Is the Company Behind SpamJadoo?

SpamKill

SpamKill is the industry-leading captcha-free spam protection service for your website. SpamKill combines multiple spam protection techniques like HTML, honeypot, human detection, bot browser detection, machine learning and gives you the perfect solution to stop the spam without the annoying captchas.

Average Rating: 4.9/5.0

Total Reviews: 11

How Do G2 Users Rate SpamKill?

  • Has the product been a good partner in doing business?: 10.0/10 (Category avg: 9.1/10)
  • Quality of Support: 8.8/10 (Category avg: 9.0/10)
  • Ease of Admin: 8.9/10 (Category avg: 8.9/10)
  • Ease of Use: 9.3/10 (Category avg: 9.0/10)

Who Is the Company Behind SpamKill?

  • Seller: SpamKill
  • Year Founded: 2018
  • HQ Location: Vancouver, CA
  • LinkedIn® Page: www.linkedin.com
    2 employees on LinkedIn®

Who Uses This Product?

  • Company Size: 55% Small, 45% Medium

What Do G2 Reviewers Say About SpamKill?

AI-generated summary from verified user reviews

Pros
  • Users highlight the effectiveness of SpamKill's bot detection, ensuring peace of mind against spam attacks on forms.
  • Users rave about the effective bot protection provided by SpamKill, ensuring seamless functionality for WordPress forms.
  • Users praise SpamKill for its excellent effectiveness in eliminating spam bots, ensuring a smooth experience.
  • Users praise SpamKill's efficiency in effectively eliminating spam bots from Wordpress forms with no complaints reported.
  • Users endorse SpamKill for its high effectiveness in eliminating spam bots from various forms, ensuring security.
Cons
  • Users face integration issues with SpamKill, particularly with its compatibility with the Keap Max version.

What Are Recent G2 Reviews of SpamKill?

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