Proxmox Mail Gateway Alternatives

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

Rspamd is an advanced spam filtering system that allows evaluation of messages by a number of rules...

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

Scrollout is a free and easy to use anti-spam email gateway designed for Linux & Windows administrators without advanced email security experience.

Zimbra is trusted by over 500 million users to increase productivity with a complete set of collaboration tools while maintaining total control over security and privacy.

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.

Anti-spam gateway blocks more than 99% of spam with less than one in 1 million false positives and...

Oikik is a cloud-based email filtering service that works with your existing email service.

Over 8 million people use MailWasher as their spam filter

A fully fledged, free email server solution, an open source project (GPL v2).

An open source mailserver suite.

Barracuda's Email Security Gateway is a powerful antivirus filter specifically designed to identify and eliminate email-borne threats, stopping hazards before they reach the network.

Postfix is a mail transfer agent (MTA) that routes and delivers electronic mail.