Dovecot (software)

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The Dovecot logo
Original author(s) Timo Sirainen
Developer(s) Timo Sirainen and contributors
Initial release July 2002 (2002-07)
Stable release 2.2.16[1] resp. 2.1.17[2] / October 25, 2014 (2014-10-25) resp. September 25, 2013 (2013-09-25)
Written in C
Operating system UNIX-like
Type POP3 and IMAP server
License Mostly MIT and LGPLv2[3]

Dovecot is an open-source IMAP and POP3 server for Linux/UNIX-like systems, written primarily with security in mind. Timo Sirainen originated Dovecot and first released it in July 2002. Dovecot developers primarily aim to produce a lightweight, fast and easy-to-set-up open-source mailserver.

According to Openemailsurvey [4] Dovecot has an installed base of over 2.9 million email servers all over the world and a global market share of 57% of all IMAP servers. While Dovecot software can be used in commercial use without any license fees, a commercial version is also available as Dovecot Pro. The commercial version is provided by Dovecot Oy along with support and enterprise add-ons such as the Object Storage plugin. Since March 2015, Dovecot Oy has been part of the Open-Xchange Family.


Dovecot can work with standard mbox, Maildir, and its own native high-performance dbox formats.[5] It is fully compatible with UW IMAP and Courier IMAP servers’ implementation of them, as well as mail clients accessing the mailboxes directly.

Dovecot also includes a Mail delivery agent (called Local delivery agent in Dovecot’s documentation), with optional Sieve filtering support.

Dovecot supports a variety of authentication schemas for IMAP and POP access including CRAM-MD5 and the more secure DIGEST-MD5.

With version 2.2 some new features have been added to Dovecot, e.g. additional IMAP command extensions, dsync has been rewritten or optimized, and shared mailboxes now support per-user flags.[6]

Apple Inc. includes Dovecot for email services since Mac OS X Server 10.6 Snow Leopard.

See also[edit]


  1. ^ "[Dovecot-news] v2.2.16 released". 2015-03-12. Retrieved 2015-03-24. 
  2. ^ "v2.1.17 released". 2013-04-05. Retrieved 2013-10-28. 
  3. ^ "COPYING.LGPL file in dovecot repository". Retrieved 2013-06-17. 
  4. ^ "Open email survey". Retrieved 2015-04-26. 
  5. ^ "Mailbox Format: dbox". Dovecot v2.x Wiki. 2012-10-30. Retrieved 2013-06-17. 
  6. ^ "v2.2.0 released". 2013-04-12. Retrieved 2013-06-17. 

External links[edit]