IMAPEngine is an IMAP server that uses a tdbengine
database structure to store all accounts,
messages, and mailboxes. This means it has nearly
no limits in numbers, sizes, and performance, and
it uses indexes to sort/find its data. IMAPEngine
is IMAP4Rev1 compatible and also has built-in
support for the ACL, ID, IDLE, and UIDPLUS
extensions. It is not (yet) an MTA, but it
retrieves incoming messages from different POP3
servers. An simple integrated Web interface makes
account configuration easy.
