pkgsrc/mail/courier-imap/DESCR
jlam 77eebb3972 Update mail/courier-imap to courier-imap-4.0.1. Changes from version
3.0.5 include:

    * Implemented IMAP and POP3 proxy aggregator.  With a proxy
      aggregator, the mail accounts are split between multiple,
      independent servers, with an IMAP/POP3 server running on each
      individual server.  A separate, proxy server sits in front and
      accepts ordinary IMAP and POP3 connections.  It reads the login
      ID, determines which server the account is located on, connects
      to the server, and logs in.  Then, for the lifetime on the login
      session the front-end server takes itself out of the loop, and
      forwards all session traffic between the IMAP/POP3 client, and
      the back-end server.

    * Use courier-authlib for user authentication.

    * IPv6 support.

    * Minor bug fixes.

Please note when updating that the locations of the userdb files has
changed to be within the courier-authlib config directory, e.g.
/usr/pkg/etc/authlib/userdb*.
2005-02-18 22:12:46 +00:00

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Courier-IMAP is a server that provides IMAP access to maildirs. This
IMAP server does NOT handle traditional mailbox files (/var/spool/mail,
and derivatives), it was written for the specific purpose of providing
IMAP access to maildirs.
"Maildir" is a directory-based mail storage format originally introduced
in the Qmail mail server, and adopted as an alternative mail storage
format by both Exim and Postfix. Courier-IMAP is popular on
Qmail/Exim/Postfix sites that are configured to use maildirs. The
primary advantage of maildirs is that multiple applications can access
the same maildir simultaneously without requiring any kind of locking
whatsoever. It is a faster and more efficient way to store mail. It
works particularly well over NFS, which has a long history of
locking-related woes.
This package differs from a vanilla Courier-IMAP installation in that
the files are installed at locations that more closely correspond to
a Courier installation.