Mox

Modern, secure, all-in-one open-source mail server

About Mox

Mox is a complete, open-source email server written in Go that bundles everything needed to send and receive mail for your own domains. A quickstart command sets it up in about ten minutes with IMAP, SMTP, SPF, DKIM, DMARC, MTA-STS and DANE support, reputation and content-based junk filtering, automatic TLS via Let's Encrypt, account autoconfiguration and built-in webmail. It suits individuals and small organizations that want a modern, secure, single-binary alternative to assembling many separate mail components.

Mox website preview

Live preview of xmox.nl via the WordPress mShots service — it can take a few seconds to generate on a first visit.

Mox: strengths & things to check

Strengths

Completely free to use — this directory lists no paid plan for it.
Covers mail server, self hosted, open source, email — 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.

Mox 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	xmox.nl

Mox 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, self hosted, open source, email
Official site: xmox.nl

Mox FAQ

How much does Mox 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 (xmox.nl).

What is Mox used for?

Modern, secure, all-in-one open-source mail server Its focus areas in the Communication & Collaboration category: mail server, self hosted, open source, email.

Where can I try Mox?

On its official site, xmox.nl — the Visit Official Site button above goes straight there.

Mox vs alternatives

	Mox	Dovecot	iRedMail	mailcow: dockerized
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, self hosted, open source, email	email, imap, mail server, self hosted, open source	mail server, email, self hosted, open source	email, mail server, self hosted, open source, docker
Official site	xmox.nl	dovecot.org	iredmail.org	mailcow.email
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 Mox, it includes OpenSIPS, Jitsi Videobridge, DavMail, Akkoma.

FreeCommunication & Collaborationmail-serverself-hostedopen-sourceemail

Alternatives to Mox

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

Communication & Collaboration

Dovecot

The secure, high performance email server

Freemiumemailimapmail-serverself-hosted

Communication & Collaboration

iRedMail

Full-featured open-source mail server solution based on Postfix and Dovecot

Freemail-serveremailself-hostedopen-source

Communication & Collaboration

mailcow: dockerized

The mailserver suite with the 'moo'

Freeemailmail-serverself-hostedopen-source

Communication & Collaboration

Postfix

Fast, easy to administer, and secure mail server

Freeemailsmtpmail-serverself-hosted

Communication & Collaboration

docker-mailserver

Production mail server packaged with Docker

Freemail-serverdockeremailself-hosted

Communication & Collaboration

EmailRelay

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

Freeemailsmtpmail-serverself-hosted

More in Communication & Collaboration

Comparing tools in the Communication & Collaboration category? These related listings are worth a look: OpenSIPS — Open-source SIP proxy and server for voice and video; Jitsi Videobridge — Open-source WebRTC SFU for multiparty video applications; DavMail — Exchange gateway for standard mail and calendar clients.