Mox — Email (Open Source)

Mox is an open-source Email solution. Compare it against 12 other Email tools on FreeSoftwareX — by features, licensing and price — and request a quote or demo free in 2026.

What is Mox?

Mox is open source — its source code is publicly available and free to use, modify and self-host, usually with an active community and no licensing fees. It is categorised under Email. Buyers typically evaluate Mox when they need a dependable Email option and want to weigh the trade-offs between free, open-source and paid tools before committing.

Mox alternatives

If Mox isn't the right fit, compare these Email alternatives side by side:

AnonAddy (addy.io)Maddy Mail ServerMail-in-a-BoxMailcowMailuModoboaPostalSimpleLoginStalwart Mail Serverdocker-mailserveriRedMailwildduck

Frequently asked questions

Is Mox free?
Yes. Mox is open source and free to use, with no purchase cost for the core product.
What are the best Mox alternatives?
Popular Email alternatives to Mox include AnonAddy (addy.io), Maddy Mail Server, Mail-in-a-Box, Mailcow. See the full list of Email on FreeSoftwareX.
What type of software is Mox?
Mox is an open-source Email tool.

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