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Anti-spam Software with API (2026)

Last updated: March 2026

Key features of Anti-spam Software

Based on GetApp's analysis of verified user reviews collected between July 2021 and August 2024.

  • Spam Blocker: Users value the spam blocker's effectiveness in filtering unwanted emails, calls, and messages while minimizing false positives. 95% of reviewers rated this feature as important or highly important.
  • Spam Detection: Reviewers highlight the AI capabilities in detecting and quarantining spam, reducing inbox clutter, and protecting against phishing. 93% of reviewers rated this feature as important or highly important.
  • Allow/Block List: Users appreciate the ease of blocking and allowing specific contacts or domains to manage spam and maintain privacy. 93% of reviewers rated this feature as important or highly important.
  • Spam Quarantine: Users find the quarantine feature useful for isolating potential threats and allowing review and recovery of emails. 92% of reviewers rated this feature as important or highly important.
  • Phishing Protection: Reviewers commend the detailed analysis and filtering of phishing attempts to protect personal and business data. 88% of reviewers rated this feature as important or highly important.
  • Anti Virus: Users note the comprehensive virus scanning and real-time threat blocking, enhancing overall system security. 87% of reviewers rated this feature as important or highly important.
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27 software options

SpamTitan logo

Anti-spam filter for business email. Vital email security.

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SpamTitan blocks spam, viruses, malware, ransomware, phishing attempts and other email threats. SpamTitan provides advanced yet easy to use email security for your business. Office 365 friendly

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Zerospam logo

Cloud email security & anti-spam solution

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ZEROSPAM is a complete cloud email security and anti-spam solution that protects domains against spam, ransomware, spear phishing, viruses, phishing and all harmful emails. Detect disguised executable files & infected macros sent as attachments via emails or downloaded through a malicious link.

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ALTOSPAM logo

Effectively protect all your company's emails

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ALTOSPAM is an email protection solution for all businesses, associations and local authorities. Choose advanced email security compatible with all mail servers, including Office 365. Try ALTOSPAM for free.

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Avanan logo

Email Security — Reinvented

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Avanan catches the advanced attacks that evade default and advanced security tools. Its invisible, multi-layer security enables full-suite protection for cloud collaboration solutions such as Office 365, G-Suite, and Slack. The platform deploys in one click via API.

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McAfee Security for Email Servers logo

Cloud-based email security platform

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McAfee Security for Email Servers is a cloud-based platform, which helps businesses block spam and filter messages to protect against malicious information from entering network. It provides security for incoming and outgoing emails and assists with content inspection, reputation analysis, and malware protection.

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IPQS logo

Fraud prevention solution for proactively detecting fraud

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IPQS, an unparalleled fraud prevention solution powered by fresh data. Detect fraud in real-time, score mobile traffic, identify high-risk users, and block abusive behavior. Ensure lead quality with data verification. Choose IPQS for proactive fraud prevention and a frictionless user experience.

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Trustifi logo

Protect Your Business Emails with AI-Powered Security

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Email security solution that helps manage threat detection, regulatory compliance, data encryption, whitelisting/blacklisting, and more.

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Radware Bot Manager logo

Automated bot detection for websites and mobile apps

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Radware Bot Manager is an automated bot detection solution that is suitable for websites and mobile applications. It is suitable for businesses in various industries, including e-commerce, financial services, travel, media, and others. With this solution, users gain granular visibility and detailed insights related to malicious bot traffic. Radware Bot Manager is designed to help businesses protect online assets, brand reputation, user experience, and revenue.

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Cisco Secure Email logo

Cloud-based email security tool for preventing cyberattacks

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Cisco Secure Email is a cloud-based email security software designed to help businesses of all sizes provide protection against malicious files, malware, ransomware, phishing attacks, spoofing, and other cyber threats. It enables organizations to streamline data loss prevention (DLP) and encryption processes to safeguard critical business information.

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INLYSE Malware.AI logo

VISUAL AI BASED MALWARE DETECTION

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INLYSE Malware.AI is a revolutionary visual AI-based malware detection solution that utilizes cutting-edge technology to convert files into graphical representations and analyze them comprehensively for any signs of malware.

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ESET PROTECT MDR logo

Future ready protection for enterprise

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Airtight protection of your IT environment,
with complete cyber risk management and
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Graphus logo

Cloud-based email security software

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Graphus is a cloud-based anti-phishing software, which helps protect organizations against email attacks, credential theft, malware, ransomware, identity spoofing, brand impersonation, business email compromise (BEC), account takeover (ATO) and other threats.

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DataDome logo

Anti-bot protection software to block unwanted traffic

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DataDome Anti-bot Protection software is a cloud-based platform designed to help businesses identify and prevent bot attacks in real-time using in-memory pattern databases along with machine learning (ML) and artificial intelligence (AI) technologies.

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SpamHero logo

Saving the world from spam, one domain at a time!

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SpamHero is a cloud-hosted spam filtering solution available. Stop the spam, viruses, and phishing attacks before they reach your network.

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Mailinblack logo

Cloud-based & on-premise email protection software

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Protecting businesses from malware, phishing, ransomware, and spam emails.

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IRONSCALES logo

We catch the phish that others miss!

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We ensure your inboxes are uncompromised and your team is unburdened.

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Vade logo

Collaborative cybersecurity based on IA, enhanced by people.

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Vade is a global cybersecurity company specializing in the development of collaborative email security solutions. Combining human and machine intelligence, Vade's solutions form a cybersecurity alliance that is powered by AI and enhanced by people.

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CleanTalk logo

Spam-free websites with real-time & cloud-based protection

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CleanTalk is a cloud-based spam protection service for websites, blocking spam in comments, forms, and registrations. Users can skip CAPTCHAs and there's no need for manual moderation. It supports WordPress, Joomla, WooCommerce, and more. The tool is also GDPR-compliant.

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modusCloud logo

Cloud email security, encryption, and archiving

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modusCloud is a cloud email security solution with tools for spam detection, threat monitoring, email archiving, phishing detection, and more. The cloud-based platform offers features including filtering, continuity, encryption, and archiving in order to provide businesses with email protection.

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Abnormal AI logo

A Fundamentally Different Approach to Email Security

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Abnormal provides total protection against the widest range of attacks including phishing, malware, ransomware, social engineering, executive impersonation, supply chain compromise, internal account compromise, spam, and graymail.

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Outreachbin logo

Cloud-based email marketing platform for cold emailing

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Outreachbin is a cloud-based email marketing platform designed to help sales professionals, founders, entrepreneurs, recruiters, small businesses, and content marketers warm-up emails and create cold email campaigns. It enables organizations to automate emails, convert prospects and handle interactions.

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Netacea Bot Management logo

Netacea protects websites, mobile apps and APIs from bots.

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Netacea Bot Management is a cloud-based solution which protects mobile applications, websites & application programming interfaces (APIs) from various online threats such as scraping, credential stuffing, & more. An Intent Analytics engine uses machine learning to distinguish bots from humans.

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Heimdal Email Security logo

Email Protection in a Redefined Spam Filter

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Heimdal Email Security is an email protection solution that combines advanced spam filtering with robust malware prevention through a multitude of modern technologies.

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Area 1 logo
(0)

Secure email gateway and anti-spam software

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Area 1 Horizon is a network security management software designed to help businesses protect systems against phishing attacks across various traffic sources including emails, web pages, and networks. The platform enables administrators to receive notifications about blocked phishing campaigns on a unified interface.

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iQ.Suite aaS logo
(0)

Enterprise email management & security solution for M365

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iQ.Suite aaS is a cloud-based enterprise email management and security solution for companies using Microsoft 365. It offers a comprehensive set of features including content-driven encryption, insider threat detection, wrong recipient protection, and more. iQ.Suite aaS offers malware and spam detection to minimize risk and secure emails from unauthorized access. Additionally, to ensure company policies are met, this solution can be used to apply business policies to email communications.

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