Top 8 Open-Source Alternatives to BulkMTA

Product categories

Email Email Clients Email Delivery Email Management Email Service Provider Enterprise Communication MTA SMTP Server Self-hosted Email

Summary

The top open-source alternatives to BulkMTA are OpenSMTPD, iRedMail, and Exim. 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
Exim Landing Page
3

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
Courier-MTA Landing Page
4

Courier-MTA

The Courier mail transfer agent (MTA) is an integrated mail/groupware server based on open...
Pricing:
- Open Source
#SMTP Server #MTA #Email
Rainloop Landing Page
5

Rainloop

RainLoop is a web based email client.
Pricing:
- Open Source
#Email #Email Clients #Email Management
sendEmail Landing Page
6

sendEmail

sendEmail is a lightweight, command line SMTP email client.
Pricing:
- Open Source
#SMTP Server #Email #MTA
Haraka Landing Page
7

Haraka

Open source SMTP server written in Node.js
Pricing:
- Open Source
#Email #SMTP Server #Self-hosted Email 9 social mentions
Hectane Landing Page
8

Hectane

Lightweight, cross-platform SMTP client
Pricing:
- Open Source
#SMTP Server #Email #MTA