Courier Mail Server

Integrated mail and groupware server based on open protocols

About Courier Mail Server

The Courier Mail Server is an integrated mail transfer agent and groupware server built on open commodity protocols including ESMTP, IMAP, POP3, LDAP, SSL, and HTTP. It provides mail delivery, webmail, mailing list management with automatic bounce processing, spam filtering, and basic web-based calendaring in a single framework, with components that can be enabled, disabled, or installed separately.

Courier Mail Server website preview

Live preview of courier-mta.org via the WordPress mShots service — it can take a few seconds to generate on a first visit.

Courier Mail Server: strengths & things to check

Strengths

Completely free to use — this directory lists no paid plan for it.
Covers mail server, smtp, imap, self hosted — see the focus areas listed in its key facts.
Has 6 close alternatives in the same category on this page, so switching or comparing is easy.

Things to check

Free tools can change their model or shut down — avoid locking critical work into it without an export path.
Current plan prices are not listed here (they change too often to print reliably) — confirm the exact price on the official site.
It is one of 565 tools in the Communication & Collaboration category here — compare it against the alternatives below before you commit.

Derived from this listing's own data (pricing model, focus areas and category) — not a hands-on review score.

Courier Mail Server pricing

Pricing model	Free — listed in this directory as a free tool, with no paid plan required to use it.
Free access	Yes — fully free
Current plan prices	Listed on the official site — prices change, so this directory links out instead of printing a number that may already be stale.
Official site	courier-mta.org

Courier Mail Server key facts

Category: Communication & Collaboration
Pricing: Free — listed in this directory as a free tool, with no paid plan required to use it.
Focus areas: mail server, smtp, imap, self hosted
Official site: courier-mta.org

Courier Mail Server FAQ

How much does Courier Mail Server cost?

Free — listed in this directory as a free tool, with no paid plan required to use it. Current plans and prices are listed on the official site (courier-mta.org).

What is Courier Mail Server used for?

Integrated mail and groupware server based on open protocols Its focus areas in the Communication & Collaboration category: mail server, smtp, imap, self hosted.

Where can I try Courier Mail Server?

On its official site, courier-mta.org — the Visit Official Site button above goes straight there.

Courier Mail Server vs alternatives

	Courier Mail Server	Dovecot	EmailRelay	Postfix
Pricing	Free — listed in this directory as a free tool, with no paid plan required to use it.	Freemium — a free tier lets you start, and paid plans are available if you need more.	Free — listed in this directory as a free tool, with no paid plan required to use it.	Free — listed in this directory as a free tool, with no paid plan required to use it.
Focus areas	mail server, smtp, imap, self hosted	email, imap, mail server, self hosted, open source	email, smtp, mail server, self hosted	email, smtp, mail server, self hosted, open source
Official site	courier-mta.org	dovecot.org	emailrelay.sourceforge.net	postfix.org
Directory status	Listed	Listed	Listed	Listed

Side-by-side from each listing's own directory data. Full alternative cards are below.

About the Communication & Collaboration category

Chat, video meetings, and messaging apps that keep teams connected. The Communication & Collaboration category on Tools Hub currently lists 565 tools. Alongside Courier Mail Server, it includes Misread, RetroShare, Spectrum 2, Sympa.

FreeCommunication & Collaborationmail-serversmtpimapself-hosted

Alternatives to Courier Mail Server

Tools in the same Communication & Collaboration category that share focus areas with Courier Mail Server — worth comparing before you commit:

Communication & Collaboration

Dovecot

The secure, high performance email server

Freemiumemailimapmail-serverself-hosted

Communication & Collaboration

EmailRelay

Lightweight SMTP store-and-forward mail server with POP access

Freeemailsmtpmail-serverself-hosted

Communication & Collaboration

Postfix

Fast, easy to administer, and secure mail server

Freeemailsmtpmail-serverself-hosted

Communication & Collaboration

chasquid

An SMTP server focused on simplicity, security and ease of operation

Freeemailsmtpmail-servergo

Communication & Collaboration

Cyrus IMAP

A free, open-source email, contacts and calendar server

Freeemailimapmail-serverjmap

Communication & Collaboration

docker-mailserver

Production mail server packaged with Docker

Freemail-serverdockeremailself-hosted

More in Communication & Collaboration

Comparing tools in the Communication & Collaboration category? These related listings are worth a look: Misread — Paste a message, see the manipulation patterns hiding in it; RetroShare — Secure, decentralized communication with chat, mail and file sharing; Spectrum 2 — Open-source instant messaging transport across different IM networks.