Mail-in-a-Box 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 Mail-in-a-Box with
choose an app… Nextcloud listmonk Docker Mailserver Mailspring Postal MailHog Stalwart Mail Server mailcow Mautic Mailpit Mailpile CryptPad Mailu Roundcube Himalaya SimpleLogin ONLYOFFICE Docs MailCatcher Maddy Mail Server Mailtrain Haraka AnonAddy RainLoop imapsync smtp4dev NeoMutt Modoboa Collabora Online aerc OnlyOffice Community Server Dittofeed Rspamd Keila emailwiz SendPortal SOGo WildDuck Mailvelope iRedMail Cypht SnappyMail Forward Email Cuttlefish DebOps swaks parsedmarc Cozy PostfixAdmin Dovecot Nextcloud Groupware Apache James Nextcloud Mail chasquid Sup Betterbird imapfilter OpenTrashmail notmuch Sieve Editor meli phpList Exim alot alps LibreOffice Online Lieer Cyrus IMAP OfflineIMAP Larch OpenSMTPD Postfix ViMbAdmin Chatmail Mailman isync MailWhale Afterlogic WebMail Lite afew Apache SpamAssassin Sympa Simple NixOS Mailserver Calligra Suite EGroupware msmtp fdm Group-Office DragonFly Mail Agent Claws Mail Fetchmail HyperKitty piler Postorius Nullmailer getmail6 OpenDMARC OpenDKIM bogofilter Citadel Schleuder Dovecot Pigeonhole Tine DKIMpy Milter mpop Courier Mail Server Afterlogic DAV b1gMail Dovel EmailRelay Inboxen Sendmail Sendy SquirrelMail
Compare Mox with
choose an app… Nextcloud listmonk Docker Mailserver Mailspring Postal MailHog Stalwart Mail Server mailcow Mautic Mailpit Mailpile CryptPad Mailu 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 Mail-in-a-Box Mox Category Mail Servers Mail Servers License CC0-1.0 MIT Language Python Go Setup difficulty Easy Easy Min. RAM 1,024 MB 256 MB Deployment bare-metal, one-click docker, binary, source GitHub stars ★ 15,385 ★ 5,771 First released 2014 2023 Replaces Google Workspace, Microsoft 365 Google Workspace, Microsoft 365
Why pick each one
Choose Mox if… Very easy to deploy Strong modern defaults Mox details
Frequently asked questions Is Mail-in-a-Box or Mox better? Neither is universally better. Mail-in-a-Box has the larger community; both share a easy setup difficulty, so the decision comes down to features and licensing.
Are Mail-in-a-Box and Mox free and open-source? Yes. Mail-in-a-Box is licensed under CC0-1.0 and Mox under MIT. Both can be self-hosted at no software cost.
Can I run Mail-in-a-Box and Mox with Docker? Mail-in-a-Box: check the project docs for container support. Mox: yes.