Cyrus IMAP
The Cyrus IMAP server differs from other IMAP server implementations in that it is generally...
Cyrus IMAP Alternatives
The best Cyrus IMAP alternatives based on verified products, community votes, reviews and other factors.
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Dovecot is an open source IMAP and POP3 email server for Linux/UNIX-like systems, written with...
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Postfix is a mail transfer agent (MTA) that routes and delivers electronic mail.
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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.
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DBMail is a fast, scalable IMAP4 and POP3 server that stores all email and users in a Postgresql...
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A fully fledged, free email server solution, an open source project (GPL v2).
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The Courier IMAP server is a fast, scalable, enterprise IMAP server that uses Maildirs.
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OBM is a free messaging and collaboration platform useful for just a couple to many thousands of users with strong support for mobile devices.
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hMailServer is a free e-mail server for Microsoft Windows.
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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.
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All your E-mail, from all your accounts, in one place. Cypht is like a news reader, but for E-mail.
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Web-based IMAP email client
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Microsoft Exchange Server is a messaging and collaborative software product developed by Microsoft.
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Archiveopteryx stores email in a database and provides access to it through IMAP and more.
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An open source mailserver suite.