Exim is a message transfer agent (MTA) developed at the University of Cambridge for use on Unix systems connected to the Internet.
Postfix Alternatives for Linux
There are many alternatives to Postfix for Linux if you are looking for a replacement. The best Linux alternative is Exim, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 25 alternatives to Postfix and many of them are available for Linux so hopefully you can find a suitable replacement. Other interesting Linux alternatives to Postfix are Mailpit, MailHog, Stalwart and OpenSMTPD.
Alternatives list
Cost / License
- Free
- Open Source (MIT)
Platforms
- Mac
- Windows
- Linux
33 MailHog alternativesMailHog is an email testing tool inspired by MailCatcher, but easier to install.
Cost / License
- Free
- Open Source
Alerts
- Discontinued
Platforms
- Mac
- Windows
- Linux
- Docker
MailHog vs Postfix Comments
- MailHog is Free and Open Source
6 Stalwart alternativesStalwart is an open-core mail server solution with JMAP, IMAP4, POP3, and SMTP support and a wide range of modern features. It is written in Rust and designed to be secure, fast, robust and scalable.
Cost / License
- Freemium
- Open Source (AGPL-3.0)
Application type
Platforms
- Self-Hosted
- Docker
- Linux
- Windows
- Mac
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.
Cost / License
- Free
- Open Source
Platforms
- Linux
- BSD
- Self-Hosted
26 Sendmail alternativesSendmail 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.
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.
- 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.
S 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.
Cost / License
- Free
- Open Source
Platforms
- Linux
- BSD
D
MailerQ is a high performance Mail Transfer Agent (MTA) and a very fast SMTP server, designed to deliver large volumes of email messages at very high speeds. MailerQ is based on RabbitMQ AMQP.
Cost / License
- Paid
- Proprietary
Platforms
- Linux
Germany
EU
United States
Netherlands
Mailhog is for testing if another application can send mails.
Postfix is for sending and receiving mails.