Mailu vs Mox
A side-by-side comparison of two self-hosted mail servers options
— licensing, setup difficulty, resource needs, and what each one
replaces.
Not the right match-up?
Compare Mailu with
choose an app… Nextcloud listmonk Docker Mailserver Mailspring Postal MailHog Mail-in-a-Box Stalwart Mail Server mailcow Mautic Mailpit Mailpile CryptPad Roundcube Himalaya SimpleLogin ONLYOFFICE Docs MailCatcher Maddy Mail Server Mailtrain Haraka AnonAddy RainLoop imapsync smtp4dev NeoMutt Modoboa Collabora Online OnlyOffice Community Server emailwiz SOGo iRedMail Cozy Nextcloud Groupware chasquid LibreOffice Online Calligra Suite EGroupware Group-Office Citadel Tine
Compare Mox with
choose an app… Nextcloud listmonk Docker Mailserver Mailspring Postal MailHog Mail-in-a-Box Stalwart Mail Server mailcow Mautic Mailpit Mailpile CryptPad Roundcube Himalaya SimpleLogin ONLYOFFICE Docs MailCatcher Maddy Mail Server Mailtrain Haraka AnonAddy RainLoop imapsync smtp4dev NeoMutt Modoboa Collabora Online OnlyOffice Community Server emailwiz SOGo iRedMail Cozy Nextcloud Groupware chasquid LibreOffice Online Calligra Suite EGroupware Group-Office Citadel Tine
Feature Mailu Mox Category Mail Servers Mail Servers License MIT MIT Language Python Go Setup difficulty Medium Easy Min. RAM 2,048 MB 256 MB Deployment docker, kubernetes docker, binary, source GitHub stars ★ 7,443 ★ 5,771 First released 2016 2023 Replaces Google Workspace, Microsoft 365 Google Workspace, Microsoft 365
Why pick each one
Choose Mailu if… Lighter than mailcow Kubernetes support Mailu details Choose Mox if… Very easy to deploy Strong modern defaults Mox details
Frequently asked questions Is Mailu or Mox better? Neither is universally better. Mailu has the larger community, while Mox is simpler to set up (easy difficulty). Choose based on the comparison table above and your own setup.
Are Mailu and Mox free and open-source? Yes. Mailu is licensed under MIT and Mox under MIT. Both can be self-hosted at no software cost.
Can I run Mailu and Mox with Docker? Mailu: yes. Mox: yes.