Postal vs Mailpit
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 Postal with
choose an app… listmonk Docker Mailserver Mailspring MailHog Mail-in-a-Box Stalwart Mail Server mailcow Mautic Mailpile Mailu Roundcube Himalaya SimpleLogin MailCatcher Maddy Mail Server Mox Mailtrain Haraka AnonAddy RainLoop imapsync smtp4dev NeoMutt Modoboa aerc Dittofeed Rspamd Keila emailwiz SendPortal WildDuck Mailvelope iRedMail Cypht SnappyMail Forward Email Cuttlefish DebOps swaks parsedmarc PostfixAdmin Dovecot Apache James Nextcloud Mail chasquid Sup Betterbird imapfilter OpenTrashmail notmuch Sieve Editor meli phpList Exim alot alps Lieer Cyrus IMAP OfflineIMAP Larch OpenSMTPD Postfix ViMbAdmin Chatmail Mailman isync MailWhale Afterlogic WebMail Lite afew Apache SpamAssassin Sympa Simple NixOS Mailserver msmtp fdm DragonFly Mail Agent Claws Mail Fetchmail HyperKitty piler Postorius Nullmailer getmail6 OpenDMARC OpenDKIM bogofilter Schleuder Dovecot Pigeonhole DKIMpy Milter mpop Courier Mail Server Afterlogic DAV b1gMail Dovel EmailRelay Inboxen Sendmail Sendy SquirrelMail
Compare Mailpit with
choose an app… listmonk Docker Mailserver Mailspring MailHog Mail-in-a-Box Stalwart Mail Server mailcow Mautic Mailpile Mailu Roundcube Himalaya SimpleLogin MailCatcher Maddy Mail Server Mox Mailtrain Haraka AnonAddy RainLoop imapsync smtp4dev NeoMutt Modoboa aerc Dittofeed Rspamd Keila emailwiz SendPortal WildDuck Mailvelope iRedMail Cypht SnappyMail Forward Email Cuttlefish DebOps swaks parsedmarc PostfixAdmin Dovecot Apache James Nextcloud Mail chasquid Sup Betterbird imapfilter OpenTrashmail notmuch Sieve Editor meli phpList Exim alot alps Lieer Cyrus IMAP OfflineIMAP Larch OpenSMTPD Postfix ViMbAdmin Chatmail Mailman isync MailWhale Afterlogic WebMail Lite afew Apache SpamAssassin Sympa Simple NixOS Mailserver msmtp fdm DragonFly Mail Agent Claws Mail Fetchmail HyperKitty piler Postorius Nullmailer getmail6 OpenDMARC OpenDKIM bogofilter Schleuder Dovecot Pigeonhole DKIMpy Milter mpop Courier Mail Server Afterlogic DAV b1gMail Dovel EmailRelay Inboxen Sendmail Sendy SquirrelMail
Feature Postal Mailpit Category Mail Servers Mail Servers License MIT MIT Language Ruby Go Setup difficulty Hard Easy Min. RAM 2,048 MB 64 MB Deployment docker, bare-metal docker, binary GitHub stars ★ 16,724 ★ 10,067 First released 2017 2022 Replaces SendGrid, Mailgun, Postmark Mailtrap, MailHog
Frequently asked questions Is Postal or Mailpit better? Neither is universally better. Postal has the larger community, while Mailpit is simpler to set up (easy difficulty). Choose based on the comparison table above and your own setup.
Are Postal and Mailpit free and open-source? Yes. Postal is licensed under MIT and Mailpit under MIT. Both can be self-hosted at no software cost.
Can I run Postal and Mailpit with Docker? Postal: yes. Mailpit: yes.