MDaemon Messaging Server Alternatives

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

Thunderbird is a free email application that's easy to set up and customize - and it's loaded with great features!

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)

Secure email with absolutely no compromises. Get your free encrypted email account today.

freemium €5.0 / Monthly (user - 5 GB)

An open source mailserver suite.

Open Source

Mailbird is the best email client for Windows 7, 8 and 10

hMailServer is a free e-mail server for Microsoft Windows.

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

Open Source

KerioConnect is a commercial mail and groupware server.

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

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.

The Power Email App for busy professionals, like you.

Zoho Mail is a secure, encrypted, and enterprise-ready email solution, a suite of apps tailor-made for your organization's needs.

freemium $1.0 / Monthly (per user)

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.