OBM Alternatives

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 Cyrus IMAP server differs from other IMAP server implementations in that it is generally...

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

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Microsoft Exchange Server is a messaging and collaborative software product developed by Microsoft.

Network Solutions - Original domain name registration and reservation services with variety of internet-related business offerings. Quick, dependable and reliable.

Web-based IMAP email client

EGroupware is free open source groupware software intended for businesses from small to enterprises.

Blue Mind is a complete solution of company messaging, calendars and collaborative work.

All your E-mail, from all your accounts, in one place. Cypht is like a news reader, but for E-mail.

Dovecot is an open source IMAP and POP3 email server for Linux/UNIX-like systems, written with...

Kolab Groupware is a secure, scalable, reliable, flexible, full-featured collaboration suite.

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

DBMail is a fast, scalable IMAP4 and POP3 server that stores all email and users in a Postgresql...

Turnkey Solutions for the Enterprise Cloud