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Set up a secure IMAP/POP3 server with Dovecot

April 6th, 2006

Internet Message Access Protocol (IMAP) servers such as Courier-IMAP and Cyrus IMAP may work well, but they’re complicated to install and configure. I´ll show you how to set up your mail server quickly and securely using Dovecot, an open source IMAP and Post Office Protocol version 3 (POP3) server for Unix-like operating systems.

Security is Dovecot´s top priority. Timo Sirainen, the program´s author, uses secure coding practices to avoid common problems and pitfalls. Dovecot maintains the index files of the mailbox constantly, making the application fast, lightweight, and memory-efficient. Sirainen claims that each connection uses only around 100KB of swappable memory.

Although it´s still in the pre-1.0 version stage, Dovecot is more stable than some other popular servers. I´ve been using Dovecot on production systems for more than eight months without having a single crash or losing any email. The project licenses most parts under the GNU Lesser General Public License (LGPL) 2.1.Read Full Story

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