Top 12 Open-Source Alternatives to MailerQ

MailerQ

MailerQ is a high performance Mail Transfer Agent (MTA) designed for delivering large volume email messages at very high speeds.

Product categories

Email Email Clients Email Delivery Email Marketing Email Marketing Platforms Email Newsletters Email Service Provider MTA Newsletter Marketing SMTP Server Self-hosted Email Transactional Email

Summary

The top open-source alternatives to MailerQ are Exim, KumoMTA, and Mail-in-a-box. 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.

Exim Landing Page
1

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
kumomta.com
2

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
Mail-in-a-box Landing Page
3

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 116 social mentions
mailcow Landing Page
4

mailcow

An open source mailserver suite.
Pricing:
- Open Source
#Email #Self-hosted Email #Email Service Provider 82 social mentions
Haraka Landing Page
5

Haraka

Open source SMTP server written in Node.js
Pricing:
- Open Source
#Email #SMTP Server #Self-hosted Email 9 social mentions
iRedMail Landing Page
6

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
Amazon SES Landing Page
7

Amazon SES

Scale your business email & marketing messages with Amazon Simple Email Service (SES), a cost-effective and reliable cloud email service. Sign up today.
Pricing:
- Open Source
#Email Delivery #Email Marketing #Transactional Email 66 social mentions
sendEmail Landing Page
8

sendEmail

sendEmail is a lightweight, command line SMTP email client.
Pricing:
- Open Source
#SMTP Server #Email #MTA
OpenSMTPD Landing Page
9

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
Postal Landing Page
10

Postal

Open source mail delivery platform, alternative to Mailgun or Sendgrid
Pricing:
- Open Source
#Email #Email Marketing #Transactional Email
Postmark Landing Page
11

Postmark

Postmark is the easiest and most reliable way to be sure your important transactional emails get to the inbox. Simply & reliably parse recieved email to JSON for your webapp.
Pricing:
- Open Source
#Email Delivery #Email Marketing #Email Marketing Platforms 50 social mentions
Mailgun Landing Page
12

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