Top 7 Open-Source Alternatives to FortiMail

FortiMail

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.

Product categories

Anti-Spam Cloud VPN Cyber Security Email Email Clients Email Delivery Email Management Email Security Email Service Provider SMTP Server Security & Privacy Self-hosted Email

Summary

The top open-source alternatives to FortiMail are SpamAssassin, SpamTitan, and iRedMail. One of the criteria for ordering this list is the number of mentions that products have on reliable external sources. You can suggest additional sources through the form here.

SpamAssassin Landing Page
1

SpamAssassin

Use this program to "Unspam" your mailbox(es).
Pricing:
- Open Source
#Email Security #Email #Cyber Security 4 social mentions
SpamTitan Landing Page
2

SpamTitan

Comprehensive Email Protection. 99.99% Spam Detection. Blocks phishing, viruses, malware and other email threats.
Pricing:
- Open Source
- Free Trial
- $0.81 / Monthly (Per User)
#Anti-Spam #Email Security #Email Management
iRedMail Landing Page
3

iRedMail

A fully fledged, free email server solution, an open source project (GPL v2).
Pricing:
- Open Source
#Email #SMTP Server #Self-hosted Email 2 social mentions
Roundcube Landing Page
4

Roundcube

Web-based IMAP email client
Pricing:
- Open Source
#Email #SMTP Server #Email Clients 16 social mentions
Wazuh Landing Page
5

Wazuh

Open Source Host and Endpoint Security
Pricing:
- Open Source
#Security & Privacy #Security Information And Event Management (SIEM) #Cyber Security 49 social mentions
OpenVPN Landing Page
6

OpenVPN

OpenVPN - The Open Source VPN
Pricing:
- Open Source
#VPN #Cloud VPN #Security 40 social mentions
Exim Landing Page
7

Exim

Exim is a message transfer agent (MTA) developed at the University of Cambridge for use on Unix systems connected to the Internet.
Pricing:
- Open Source
#SMTP Server #Email #MTA