Best WildDuck Alternatives ranked by AI · updated Aug 2026

💡 Pick it for a modern all-in-one mail server with JMAP, SMTP, and IMAP instead of assembling WildDuck's components.

Stalwart is an open-source, all-in-one mail server supporting JMAP, IMAP, SMTP, and modern email security standards. It targets self-hosters, organizations, and service...

💡 Choose it when you want a complete self-hosted mail suite with webmail, filtering, and administration included.

mailcow is a modern mail server suite based on Dovecot, Postfix, SOGo, and other open-source software. It provides a complete email solution...

💡 Pick it if you want WildDuck-like open-source control with a web administration layer over proven mail components.

Modoboa is a mail hosting and management platform including a modern and simplified web interface for user and domain administration.

💡 Choose it for the simplest small-scale self-hosted deployment when WildDuck's extensibility and scale are unnecessary.

Mail-in-a-Box provides a full stack mail server solution with webmail and contacts. It enables easy mail hosting and management.

💡 Pick it for a mature, conventional Postfix/Dovecot stack with broad documentation and multi-domain support.

iRedMail is a full-featured mail server solution that supports email services like SMTP, IMAP, POP3, and webmail.

💡 Choose it when fast deployment and an integrated webmail stack matter more than WildDuck's scalability and customization.

Poste.io is a complete mail server solution with a modern web interface, spam filter, calendar, and contacts.