Trend Micro InterScan Messaging Security Alternatives

Fortinet Email security is designed to block ransomware, phishing, and other cyber threats seeking entry via incoming email and outgoing messages don’t improperly leak sensitive data.

Secure Email Gateway

1Password can create strong, unique passwords for you, remember them, and restore them, all directly in your web browser.

Visit website paid Free Trial $36.0 / Annually

SonicWall Email Security appliances are ideal for organizations that need a dedicated on-premises solution.

Malwarebytes protects you against malware, ransomware, and other advanced online threats that have made antivirus obsolete and ineffective. Free Anti-Malware & Malware .

Protect mail server against spam, viruses and malware with Proxmox Mail Gateway security for businesses, government, education and non-profit organizations.

Download the best FREE antivirus for Windows-based desktops, laptops, & tablets and get the core protection against viruses, spyware, phishing & dangerous websites.

Use this program to "Unspam" your mailbox(es).

Open Source

Prevent targeted email-borne attacks with Mimecast Secure Email Gateway for cloud-based anti-virus and anti-spam protection.

logstash is a tool for managing events and logs.

MailScanner is a open source email security system design for Linux-based email gateways.

AppRiver is an email and web security company, develops SaaS-based anti-spam, hosted exchange, email encryption and web protection solutions.

Cisco IronPort Web Security Appliance

Secure Email Gateway