Nullmailer 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 Nullmailer with
choose an app… listmonk Docker Mailserver Mailspring Postal MailHog Mail-in-a-Box Stalwart Mail Server mailcow Mautic OpenSMTPD msmtp DragonFly Mail Agent
Compare Mailpit with
choose an app… listmonk Docker Mailserver Mailspring Postal 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 getmail6 OpenDMARC OpenDKIM bogofilter Schleuder Dovecot Pigeonhole DKIMpy Milter mpop Courier Mail Server Afterlogic DAV b1gMail Dovel EmailRelay Inboxen Sendmail Sendy SquirrelMail
Feature Nullmailer Mailpit Category Mail Servers Mail Servers License GPL-2.0 MIT Language C++ Go Setup difficulty Easy Easy Min. RAM 16 MB 64 MB Deployment bare-metal, source docker, binary GitHub stars ★ 199 ★ 10,067 First released 2000 2022 Replaces Sendmail Mailtrap, MailHog
Frequently asked questions Is Nullmailer or Mailpit better? Neither is universally better. Mailpit has the larger community; both share a easy setup difficulty, so the decision comes down to features and licensing.
Are Nullmailer and Mailpit free and open-source? Yes. Nullmailer is licensed under GPL-2.0 and Mailpit under MIT. Both can be self-hosted at no software cost.
Can I run Nullmailer and Mailpit with Docker? Nullmailer: check the project docs for container support. Mailpit: yes.