Publisher review:Courier-IMAP is a fast, scalable, enterprise IMAP server that uses Maildirs. Courier-IMAP is a fast, scalable, enterprise IMAP server that uses Maildirs. Many E-mail service providers use Courier-IMAP to easy handle hundreds of thousands of mail accounts.
With the built-in IMAP and POP3 aggregation proxy in Courier-IMAP, the only practical limit to Courier's horizontal scalability is available LAN bandwidth.
In proxy mode, a pool of Courier servers receive IMAP and POP3 connections from clients, wait for the clients to send a login request, look up the mail account's server, and establish a proxy connection to the actual server that hosts the mail account.
Courier-IMAP is a C/C++ script for Games scripts design by Sam Varshavchik.
It runs on following operating system: Linux / BSD.
Operating system:Linux / BSD
Courier-IMAP script details 
