Best WildDuck Alternatives & Competitors

An open source mailserver suite.

Open Source

Mail-in-a-Box provides webmail and an IMAP/SMTP server for use with mobile devices and desktop mail software and also includes contacts and calendar synchronization.

Open Source

Warm up your cold email inbox, and never land in spam anymore!

Try for free freemium $9.0 / Monthly

Mailu is a simple yet full-featured mail server as a set of Docker images.

Modoboa is a mail hosting and management platform including a modern and simplified Web User Interface.

Simple, easy and secure mail server with a convenient and simple interface.

Open-Xchange Server 6 is the most advanced Linux based Groupware solution f.

Postfix Admin is a web based interface used to manage mailboxes, virtual domains and aliases.

Email Marketing for Business Checkout a smart email marketing software that helps you grow your business & reach out to new customers.

A fully fledged, free email server solution, an open source project (GPL v2).

Open Source

Eudora Internet Mail Server is a highly advanced internet mail system that supports the all kind of email systems and clients either it is IMAP, POP3, SMTP and much more.

Full featured email server built in docker with free plan.

Synovel Collabsuite is the name of a next generation and open source web server for the Linux operating systems that now features the chat and support for the calendars as well.

SmarterMail is a next generation email management server that is offering several business collaboration and communication features as well.