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The Maildir e-mail format is a common way of storing email messages on a file system, rather than in a database. Each message is assigned a file with a unique name, and each mail folder is a file system directory containing these files. Maildir was designed by Daniel J. Bernstein circa 1995, with a major goal of eliminating the need for program ...
Dovecot is an open-source IMAP and POP3 server for Unix-like operating systems, written primarily with security in mind. [3] 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 email server. The primary purpose of Dovecot is to act as ...
Website. www.postfix.org. Postfix is a free and open-source mail transfer agent (MTA) that routes and delivers electronic mail. It is released under the IBM Public License 1.0 which is a free software license. Alternatively, starting with version 3.2.5, it is available under the Eclipse Public License 2.0 at the user's option.
The comparison of mail servers covers mail transfer agents (MTAs), mail delivery agents, and other computer software that provide e-mail services. Unix -based mail servers are built using a number of components because a Unix-style environment is, by default, a toolbox [1] operating system. A stock Unix-like server already has internal mail ...
Website. www.procmail.org. procmail is an email server software component — specifically, a message delivery agent (MDA). It was one of the earliest mail filter programs. It is typically used in Unix-like mail systems, using the mbox and Maildir storage formats. procmail was first developed in 1990, by Stephen R. van den Berg. [1]
Maildir Bernstein invented the Maildir format for qmail, which splits individual email messages into separate files. Unlike the de facto standard mbox format, which stored all messages in a single file, Maildir avoids many locking and concurrency problems, and can safely be provisioned over NFS. qmail also delivers to mbox mailboxes. Wildcard ...
Exim is a free software distributed under the terms of the GNU General Public License, and it aims to be a general and flexible mailer with extensive facilities for checking incoming e-mail. Exim has been ported to most Unix-like systems, as well as to Microsoft Windows using the Cygwin emulation layer.
Delivers directly to Maildir for use with qmail-pop3d, .qmail files or any other Maildir program; Unique domains for each directory under vpopmail user with a Unique password files for each domain; Documented command line programs that can be used in scripts or for remote admin; Documented C library for vpopmail features and transactions