Best Email Anti-spam Software - Page 8

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

Total Products under this Category: 121

Category Stats (Oct 2026)

  • Average Rating: 4.46/5 The average rating of products in this category, based on all submitted ratings
  • Top Trending Product: Barracuda Email Gateway Defense (+0.5%) - Among all products in this category, Barracuda Email Gateway Defense recorded the largest rating increase compared to last month

Last updated: October 16, 2026

How Does G2 Rank Email Anti-spam Software Products?

Why You Can Trust G2's Software Rankings:

  • 30 Analysts and Data Experts
  • 6,300+ Authentic Reviews
  • 121+ 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, Paubox, Abnormal AI, 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=microsoft-microsoft-defender-for-office-365&focus%5B%5D=valimail&focus%5B%5D=paubox&focus%5B%5D=abnormal-ai&focus%5B%5D=sanebox&focus%5B%5D=libracyber-email-security)

OOPSpam

OOPSpam API stops bots and manual spam from reaching your customers with high accuracy and privacy.

Who Is the Company Behind OOPSpam?

  • Seller: Oopspam
  • Year Founded: 2019
  • HQ Location: Minneapolis, US
  • LinkedIn® Page: www.linkedin.com
    2 employees on LinkedIn®

Parla

Parla is a corporate email solution in the cloud, with an integrated security layer and EU-compliant privacy controls.

Who Is the Company Behind Parla?

  • Seller: Spamina
  • Year Founded: 2007
  • HQ Location: Hannover, Lower Saxony, Germany
  • LinkedIn® Page: www.linkedin.com
    436 employees on LinkedIn®

PhishCloud Protection Platform for Business

PhishCloud Protection Platform for Business is the standard for phishing protection across all digital platforms. Our patented technology empowers people to spot phishing attacks in real-time, making it as simple as a traffic light - red for malicious, yellow for suspicious, green for safe - so that they make the right decisions, reducing risk across email, web, social media and messaging applications.​ PhishCloud fortifies IT with full visibility into the malicious content their users are seeing so that they can focus on the real threats, with real-time attribution and contextual event data. Automatically block bad links from being clicked, notify users in real-time so they are immediately aware of threats, and deliver reality-based training as it happens.

Who Is the Company Behind PhishCloud Protection Platform for Business?

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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 praise the responsive customer support of Qboxmail, finding assistance helpful and timely for their needs.
  • Users value the data protection offered by Qboxmail, ensuring their email security and peace of mind.
  • Users find Qboxmail easy to navigate, praising its user-friendly interface that simplifies email management.
  • Users value the strong malware protection provided by Qboxmail, ensuring their data remains secure and safe.
  • Users value the top-notch security of Qboxmail, feeling confident their data is well-protected.

What Are Recent G2 Reviews of Qboxmail?

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?

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?

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?

Spameo

Spameo is a spam blocker for Gmail.

Who Is the Company Behind Spameo?

SpamJadoo

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

Who Is the Company Behind SpamJadoo?

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
  • Twitter: @xgenplus
    1,116 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    5 employees on LinkedIn®

SpamStopsHere

SpamStopsHere is build to stopping email threats in the cloud before they damage the business.

Who Is the Company Behind SpamStopsHere?

  • Seller: Greenview Data
  • Year Founded: 1980
  • HQ Location: Ann Arbor, US
  • Twitter: @GreenviewData
    103 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    7 employees on LinkedIn®

UserCheck

UserCheck is an API service that detects disposable email addresses during user registration. It helps businesses prevent abuse from throwaway accounts by maintaining an up-to-date database of temporary email domains. With simple integration, custom blocklists, and bulk verification capabilities, UserCheck enables companies to maintain registration quality and reduce spam.

Who Is the Company Behind UserCheck?

Vodien spamGuard

Vodien's spamGuard is an advanced email security solution designed to protect individuals and businesses from spam, viruses, and malware. By implementing real-time filtering, spamGuard ensures that your inbox remains free from unwanted and potentially harmful emails, thereby enhancing productivity and safeguarding sensitive information. Key Features and Functionality: - High Detection Accuracy: Achieves 99% accuracy in detecting spam, viruses, and malware, ensuring comprehensive protection. - Unlimited Coverage: Provides protection for an unlimited number of email accounts per domain, accommodating businesses of all sizes. - Unmetered Incoming Emails: Handles an unlimited volume of incoming emails without compromising performance. - Control Panel Access (Pro Version: The Pro version includes a dedicated, self-managed control panel for enhanced customization and management. - Customizable Settings (Pro Version: Offers features such as whitelist/blacklist management, adjustable anti-spam detection thresholds, quarantine capabilities, and customizable email attachment limits. Primary Value and User Benefits: spamGuard addresses the common challenges of managing high volumes of spam and protecting against email-borne threats. By filtering out unwanted emails, it allows users to focus on important communications, thereby increasing productivity. The solution's seamless integration into existing email workflows ensures convenience without the need for complex setups. Additionally, with 24/7 customer support, users have access to expert assistance whenever needed, providing peace of mind and reliable protection.

Who Is the Company Behind Vodien spamGuard?

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