Top 12 Open-Source Alternatives to Exim

Product categories

Email Email Clients Email Delivery Email Marketing Email Marketing Platforms Email Service Provider Email Testing MTA Newsletter Marketing Office Suites SMTP Server Self-hosted Email

Summary

The top open-source alternatives to Exim are OpenSMTPD, iRedMail, and Roundcube. 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.

OpenSMTPD Landing Page
1

OpenSMTPD

OpenSMTPD is a FREE implementation of the server-side SMTP protocol as defined by RFC 5321, with...
Pricing:
- Open Source
#SMTP Server #Email #MTA 2 social mentions
iRedMail Landing Page
2

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
3

Roundcube

Web-based IMAP email client
Pricing:
- Open Source
#Email #SMTP Server #Email Clients 16 social mentions
Mail-in-a-box Landing Page
4

Mail-in-a-box

Mail-in-a-Box provides webmail and an IMAP/SMTP server for use with mobile devices and desktop mail software and also includes contacts and calendar synchronization.
Pricing:
- Open Source
#Email #Self-hosted Email #Email Service Provider 115 social mentions
mailcow Landing Page
5

mailcow

An open source mailserver suite.
Pricing:
- Open Source
#Email #Self-hosted Email #Email Service Provider 82 social mentions
kumomta.com
6

KumoMTA

KumoMTA is the world's first Open-Source MTA designed from the ground-up for large-volume senders. Get a fast, flexible, supported solution.
Pricing:
- Open Source
- Free
- Free Trial
#Email #Self-hosted Email #SMTP Server 1 social mentions
Courier-MTA Landing Page
7

Courier-MTA

The Courier mail transfer agent (MTA) is an integrated mail/groupware server based on open...
Pricing:
- Open Source
#SMTP Server #MTA #Email
Dovecot Landing Page
8

Dovecot

Dovecot is an open source IMAP and POP3 email server for Linux/UNIX-like systems, written with...
Pricing:
- Open Source
#Email #SMTP Server #Self-hosted Email
Mailgun Landing Page
9

Mailgun

A set of powerful APIs that enable you to send, receive and track email from your app effortlessly whether you use Python, Ruby, PHP, C#, Node.js or Java.
Pricing:
- Open Source
#Email Delivery #Transactional Email #Email Marketing 11 social mentions
DBMail Landing Page
10

DBMail

DBMail is a fast, scalable IMAP4 and POP3 server that stores all email and users in a Postgresql...
Pricing:
- Open Source
#Email #Self-hosted Email #SMTP Server 4 social mentions
sendEmail Landing Page
11

sendEmail

sendEmail is a lightweight, command line SMTP email client.
Pricing:
- Open Source
#SMTP Server #Email #MTA
MailHog Landing Page
12

MailHog

MailHog is an email testing tool inspired by MailCatcher, but easier to install.
Pricing:
- Open Source
#Email #Office Suites #Email Testing