Courier Mail Server is a user-friendly email server designed for office and home networks. It comes with both Web and SOCKS servers and is compact and easy to configure. This software simplifies email exchange within local networks and the Internet.

The software's major features include SMTP and POP3 services, an HTTP web server with PHP and Perl support, a SOCKS proxy server, support for SSL/TLS connections, remote administration, and support for multiple mail domains. Additionally, users can process and filter spam using specified rules, and it also supports interaction with console antiviruses.
Courier Mail Server allows you to easily manage and arrange email exchange, thanks to its various features such as user and domain aliases, alias-based mailing lists, domain mailboxes and domain forwarding. You can even send mail directly to your recipient's servers (MX delivery), restrict forwarding of external mail (antirelay) and enjoy automatic re-sending of outgoing mail.
The software comes equipped with customizable notification templates with support of macros, separation of access rights on client IP addresses, and a mail collector from remote mailboxes (POP3, IMAP). Plus, you can enjoy its dispatchers of connections, outgoing messages, and remote messages, and even schedule it to run external applications.
Another helpful feature is the ability to copy certain messages to specified addresses and handle mail processing using external applications. There are no time limits or paid subscriptions and renewals—instead, you pay once and get an eternal key (license) and free software updates as part of the current version line (3.xx).
Not convinced? Try the demo version which is fully-functional and free for three users, with no limitations on the working period. Overall, Courier Mail Server is an excellent choice for anyone searching for an email server that is easy to use, secure, and flexible.
Version 3.10:
— The server log is divided into 6 logs.
— Automatic deletion of old log files.
— Ability to choose the type and size of fonts in the console parameters.
— For each external IMAP mailbox, a folder can now be specified from whih mail will be received.
— Other improvements.