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Top Rated Email Security Software with Whitelisting/Blacklisting

Last updated: April 2026

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70 software options

Libraesva Email Security logo

Libraesva Email Security

Exceptional Email Security

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Libraesva Email Security stops known and emerging email threats from reaching their target, so you only receive legitimate messages. It provides exceptional email security by integrating cloud email and a secure email gateway with Libraesva’s unique Adaptive Trust Engine.

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Guardz logo

Guardz

Cybersecurity solution

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Guardz is a managed cybersecurity solution built for MSPs to holistically protect and provide insurance coverage to SMEs with a holistic and multilayered approach.

The Guardz platform continuously monitors businesses' digital landscapes to safeguard their assets.

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ContentCatcher logo

ContentCatcher

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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EasyDMARC logo

EasyDMARC

Email security and deliverability platform

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EasyDMARC is a comprehensive cloud-native platform designed to simplify email authentication and deliverability management. With its intuitive interface, it offers in-depth visibility into users' email ecosystems, allowing them to monitor traffic, analyze authentication results, and protect their domain's reputation.

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Heimdal Email Security logo

Heimdal Email Security

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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Virtru logo

Virtru

Cloud-based data privacy and security platform

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Virtru has email and data encryption solutions for organizations of all sizes across all industries including healthcare, government, education, manufacturing, aerospace and defense, finance, IT services, Media and more.

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InboxGuard logo

Email phishing protection and fraud detection solution

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InboxGuard (formerly Retruster) is a cloud-based phishing protection solution designed to help small to large organizations identify fake and malicious codes in incoming emails. Key features include data security, ransomware protection, identity theft prevention, background screening, and threat tracking.

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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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Beeble logo

Private Encrypted Email and Cloud Without Third Party Access

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Beeble is secure email and cloud storage with end-to-end encryption. Complete privacy, no ads, and business-grade data protection.

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Barracuda Incident Response logo

Email security and digital forensics software

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Barracuda Forensics and Incident Response is an email security software designed to help businesses identify and manage various external email attacks including ransomware or phishing emails. The application enables organizations to monitor security threats, block malicious emails, and automate workflows.

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MXGuardian logo

The Experts in Email Security

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Cloud-based email spam and malware filtering service that protects your business from phishing attacks, viruses, spam, ransomware and other email threats.

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Sentry Email Defense Service logo

Cloud-based email protection platform

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Sentry Email Defense Service (EDS) is a cloud-based platform that helps businesses ensure protection against spam, virus, phishing links, DDoS, ransomware, and various other threats. Features include real-time reporting, encryption, data leakage protection, SMTP logs, and email archiving.

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mxHERO Email Attachment Protection logo

Email Security to protect data sent by email attachments

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Greatly improve your data security by automatically delivering email attachments as self-expiring cloud storage links. Attachments auto-uploaded to your cloud storage and replaced with expiring links (7, 14, 30 days). No end-user effort or downloads required.

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SendGuard for Outlook logo

Governance, Risk & Compliance Solution for Outbound Emails

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SendGuard for Outlook prevents accidental data loss caused by misdirected emails and mis-attached files.

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Retarus logo

Your Communications Need More Than Just the Best

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The Retarus Communications Platform helps you secure, modernize, consolidate, and cloudify existing communication infrastructures. Make your communications platform work better so you can work better: with Retarus.

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Paubox Email Suite logo

HIPAA-compliant email encryption software

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Paubox Email Suite is a HIPAA-compliant email encryption software designed to help businesses manage and secure emails using encryption and data loss prevention methods. It includes ExecProtect, which allows businesses to prevent data breaches, phishing, and display name spoofing attacks by automatically detecting and blocking impersonation scams and informing administrators via emails.

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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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Red Sift OnDMARC logo

Automated DMARC software to stop phishing & spoofing attacks

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Red Sift OnDMARC shuts down the exact impersonation of email-sending domains used in cyber attacks, phishing, and scam emails. It also increases the deliverability of authorized emails and protects brand reputations.

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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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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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Avanan logo

Email Security — Reinvented

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Cloud Security, Cloud Email Security, Office 365 Security, Phishing, BEC, Anti-phishing, Malware, Email Account Breach, Business Email Compromise

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servermx logo

Email Hosting Solution

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Servermx is a secure email hosting service that provides encryption for confidential emails, optional Dropbox integration for easy file sharing and two-factor authentication for an extra layer of security.

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Cynet 360 logo

Automated breach response and protection platform

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Cynet 360 is an all-in-one security platform that provides endpoint threat detection and response for networks that require advanced protection. It gives network administrators visibility over all networked devices, users, and events. Cyber security technology is viable for companies of all sizes.

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Flashstart logo

DNS filtering software provider

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FlashStart is at the forefront of cyber security innovation, leveraging AI-powered DNS intelligence to stay one step ahead of evolving threats.

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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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