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Anti-spam Software with Whitelisting/Blacklisting (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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User rating

32 software options

ESET Endpoint Security logo

Network security, network monitoring & endpoint protection

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ESET Endpoint Security is a network monitoring solution, which helps businesses manage processes for detecting threats, blocking targeted attacks, preventing data breaches & providing protection against ransomware. It lets users monitor behavior of malicious processes and decloak memory segments.

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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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Microsoft Defender for Office 365 logo

Cloud-based email security and threat management software

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Microsoft Defender for Office 365 is a cloud-based email security software designed to help businesses automatically detect, investigate, and resolve potential email threats on a centralized platform. Supervisors can configure security policies, perform spoof checks, and maintain a record of reported incidents.

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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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Symantec Email Security.cloud logo

Anti-spam and email security software

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Symantec Email Security.cloud is an anti-spam software designed to help businesses filter unwanted messages and protect the system from email-borne viruses. The platform offers data loss prevention functionality, which enables managers to encrypt and control sensitive data.

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Topsec Cloud Solutions logo

Your Managed Email Security Specialists

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Topsec Email Security is a complete email filtering solution that helps organizations to check all their incoming and outgoing email content for virus and spam.

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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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LeanMail logo

Don't give up finding a solution for email until you try LM

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Get Total Control Over Outlook. For every type of user and every personality type. Five easy, customizable solutions that give you all the control over your inbox that you want.

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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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Mail Assure logo

Email, Secured.

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Cloud-based email security designed to help your customers stay in control while safeguarding their inbound and outbound email.

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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.

Read more about Cisco Secure Email

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Security Gateway by MDaemon logo

Powerful yet flexible email security software.

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Security Gateway by MDaemon is an email security software designed to help businesses secure email servers from malware and phishing attacks. The solution enables administrators to automatically detect threats across various platforms including Microsoft Exchange Server and Office 365.

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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
world-class ESET expertise on call.

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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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ContentCatcher logo

Cloud-based email security, phishing protection & anti-spam

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ContentCatcher is a web-based SaaS solution offering email security, encryption, anti-spam, phishing protection and compliant archiving to assist organizations of all levels to combat and mitigate malicious email threats, with features including anti-virus, filtering, URL defense, reporting and more

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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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SilverSky Email Protection Suite logo

Advanced email security and compliance for SMBs

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Reduces risk exposure and corporate liability by safeguarding your email with anti-virus and anti-spam technologies that block malicious software and spam at the gateway. SilverSky protects small and mid-sized businesses to prevent targeted attacks, social engineering attacks and data exfiltration.

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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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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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Inky logo

The most effective solution when fighting phishing attacks.

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INKY is an endpoint protection tool that helps businesses leverage artificial intelligence (AI) technology and machine learning capabilities to identify and prevent phishing attacks. INKY can be integrated with Microsoft Exchange, Google Workspace and other applications.

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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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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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