Rspamd vs mailcow
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 Rspamd with
choose an app… listmonk Docker Mailserver Mailspring Postal MailHog Mail-in-a-Box Stalwart Mail Server Mautic Mailpit
Compare mailcow with
choose an app… listmonk Docker Mailserver Mailspring Postal MailHog Mail-in-a-Box Stalwart Mail Server Mautic Mailpit Mailpile Mailu Roundcube Himalaya SimpleLogin MailCatcher Maddy Mail Server Mox Mailtrain Haraka AnonAddy RainLoop imapsync smtp4dev NeoMutt Modoboa aerc Dittofeed 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 Lieer Cyrus IMAP OfflineIMAP Larch OpenSMTPD Postfix ViMbAdmin Chatmail Mailman isync MailWhale Afterlogic WebMail Lite afew Apache SpamAssassin Sympa Simple NixOS Mailserver EGroupware msmtp fdm Group-Office DragonFly Mail Agent Horde Groupware Claws Mail Fetchmail DAViCal HyperKitty Kolab Groupware piler Postorius Nullmailer getmail6 OpenDMARC OpenDKIM bogofilter Citadel Schleuder Dovecot Pigeonhole Kopano Groupware Core Tine DKIMpy Milter mpop Courier Mail Server Afterlogic DAV b1gMail Dovel EmailRelay Inboxen Sendmail Sendy SquirrelMail
Feature Rspamd mailcow Category Mail Servers Mail Servers License Apache-2.0 GPL-3.0 Language C JavaScript Setup difficulty Medium Medium Min. RAM 256 MB 6,144 MB Deployment docker, bare-metal, source docker GitHub stars ★ 2,507 ★ 13,245 First released 2013 2016 Replaces — Microsoft Exchange, Google Workspace
Why pick each one
Choose Rspamd if… Much faster than SpamAssassin Rich web interface Rspamd details Choose mailcow if… All components preconfigured Active community mailcow details
Frequently asked questions Is Rspamd or mailcow better? Neither is universally better. mailcow has the larger community; both share a medium setup difficulty, so the decision comes down to features and licensing.
Are Rspamd and mailcow free and open-source? Yes. Rspamd is licensed under Apache-2.0 and mailcow under GPL-3.0. Both can be self-hosted at no software cost.
Can I run Rspamd and mailcow with Docker? Rspamd: yes. mailcow: yes.