Postfix AlternativesMail Servers and other similar apps like Postfix

Postfix is described as 'Mail transfer agent (MTA) that routes and delivers electronic mail. It attempts to be fast, easy to administer, and secure. The software is also known by its former names VMailer and IBM Secure Mailer' and is a Mail Server in the online services category. There are more than 10 alternatives to Postfix for a variety of platforms, including Linux, Mac, Windows, Self-Hosted and BSD apps. The best Postfix alternative is Mail-in-a-box, which is both free and Open Source. Other great apps like Postfix are Exim, MailHog, OpenSMTPD and KumoMTA.

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Free • Open Source
Mail Server

Postfix is a mail transfer agent (MTA) that routes and delivers electronic mail. It attempts to be fast, easy to...

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Postfix alternatives page was last updated

Mail-in-a-box
Is this is a good alternative?
Yes
No
Free • Open Source
Mail Server
Self-Hosted
Roundcube
13 Mail-in-a-box alternatives
Easy-to-deploy mail server.
- - Mail-in-a-box is the most popular Self-Hosted alternative to Postfix.
- - Mail-in-a-box is the most popular Open Source & free alternative to Postfix.
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Mail-in-a-box Features
IMAP Support
Nextcloud integration
Comments about Mail-in-a-box as a Alternative to Postfix
pros, cons and recent comments
Guest
Mail-in-a-box uses Postfix internally
Negative comment •
0
Exim
Is this is a good alternative?
Yes
No
Free • Open Source
Mail Server
Mac
Linux
16 Exim alternatives
Exim is a message transfer agent (MTA) developed at the University of Cambridge for use on Unix systems connected to the Internet.
- - Exim is the most popular Mac & Linux alternative to Postfix.
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Exim Features
SMTP Support
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Opinions about Exim as a Alternative to Postfix
Most users think Exim is a great Postfix alternative.
MailHog
Is this is a good alternative?
Yes
No
Free • Open Source
Mac
Windows
Linux
Docker
30 MailHog alternatives
MailHog is an email testing tool inspired by MailCatcher, but easier to install.
- - MailHog is the most popular Windows alternative to Postfix.
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MailHog Features
1. PortableMailHog can be used from a USB stick or similar with no prior installation.
Email Forwarding
SMTP Support
Comments about MailHog as a Alternative to Postfix
Some users think MailHog is a great Postfix alternative, some don't.
Guest
Mailhog is for testing if another application can send mails.

Postfix is for sending and receiving mails.
Negative comment •
0
OpenSMTPD
Is this is a good alternative?
Yes
No
Free • Open Source
Linux
BSD
Self-Hosted
12 OpenSMTPD alternatives
OpenSMTPD is a FREE implementation of the server-side SMTP protocol as defined by RFC 5321, with some additional standard extensions. It allows ordinary machines to exchange e-mails with other systems speaking the SMTP protocol.
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OpenSMTPD Features
SMTP Support
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KumoMTA
Is this is a good alternative?
Yes
No
Free • Open Source
Self-Hosted
6 KumoMTA alternatives
KumoMTA is the only true Open-Source PowerMTA alternative, capable of matching performance of several million messages per hour while providing granular traffic shaping configuration and automation across unlimited IPs.
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KumoMTA Features
SMTP Support
Mailpit
Is this is a good alternative?
Yes
No
Free • Open Source
Mac
Windows
Linux
30 Mailpit alternatives
An email and SMTP testing tool with API for developers.
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Mailpit Features
Email validation
REST API
Email testing
Sendmail
Is this is a good alternative?
Yes
No
Free • Open Source
Mail Server
Mac
Linux
26 Sendmail alternatives
Sendmail is a general purpose internetwork email routing facility that supports many kinds of transfer and delivery methods, including the Simple Mail Transfer Protocol (SMTP) used for email transport over the Internet.
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Sendmail Features
SMTP Support
sSMTP
Is this is a good alternative?
Yes
No
Free • Open Source
Linux
19 sSMTP alternatives
sSMTP is a simple MTA to deliver mail from a computer to a mail server. sSMTP is simple and lightweight, there are no daemons or anything hogging up CPU; Just sSMTP. Unlike Exim4, sSMTP does not receive mail, expand aliases, or manage a queue.
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sSMTP Features
Support for NodeJS
SMTP Support
Discontinued
The last update was in 2013.
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Courier-MTA
Is this is a good alternative?
Yes
No
Free • Open Source
Mail Server
Mac
Linux
BSD
Self-Hosted
11 Courier-MTA alternatives
The Courier mail transfer agent (MTA) is an integrated mail/groupware server based on open commodity protocols, such as ESMTP, IMAP, POP3, LDAP, SSL, and HTTP. Courier provides ESMTP, IMAP, POP3, webmail, and mailing list services within a single, consistent, framework.
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Courier-MTA Features
1. Mail FilteringCourier-MTA classifies email messages according to specified criteria, allowing you to automatically recognize fraudulent or spam messages.
SMTP Support
IMAP Support
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msmtp
Is this is a good alternative?
Yes
No
Free • Open Source
Linux
Xfce
7 msmtp alternatives
In the default mode, it transmits a mail to an SMTP server (for example at a free mail provider) which takes care of further delivery.
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msmtp Features
Network Tools
SMTP Support
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Inbucket
Is this is a good alternative?
Yes
No
Free • Open Source
Mac
Windows
Linux
7 Inbucket alternatives
Need to test your webapps outbound emails with Mailinator but stuck behind a firewall? Want to keep the new application you are developing secret until it’s time to release it? Need to validate that emails go out as part of your integration test suite?
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Inbucket Features
POP3 Support
SMTP Support
REST API
Dragonfly Mail Agent
Is this is a good alternative?
Yes
No
Free • Open Source
Linux
BSD
7 Dragonfly Mail Agent alternatives
A small Mail Transport Agent (MTA), designed for home and office use. Part of DragonFly BSD , it accepts mails from locally installed Mail User Agents (MUA) and delivers the mails either locally or to a remote destination.
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Dragonfly Mail Agent Features
SMTP Support
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12 of 24 Postfix alternatives

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