Mailu Alternatives

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

The #1 email warming service to improve your deliverability by generating realistic and meaningful engagement to your emails. Easy-to-use solution to help you land in the main inbox instead of the spam folder.

Visit website paid $19.5 / Monthly (Pro)

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

Full featured email server built in docker with free plan.

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

Open Source

Self hosted modern mail server

Open Source

Zimbra is trusted by over 500 million users to increase productivity with a complete set of collaboration tools while maintaining total control over security and privacy.

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.

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

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

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.

Web-based IMAP email client

Open Source

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