pam_imap is a PAM module that authenticates against a remote IMAP or IMAPS server. It supports multiple servers, SSL, password caching, user blacklists (for admin users), and many configuration abilities.
Information regarding Project Releases and Project Resources. Note that the information here is a quote from Freecode.com page, and the downloads themselves may not be hosted on OSDN.
This release is 3 seconds faster for authentication. Upgrading is highly recommend. Usernames and passwords can be up to 64 characters, and can be changed easily. Support has been added for PAM_Domain, adding a username@domain.com style login for Microsoft IMAP servers.
This release features password caching using a password
hash to store passwords encrypted with MD5. This speeds up
authentications. It adds a "BlockList" feature that can be
used to block users like root and Administrator from being
authenticated against an IMAP server, and fixes several
compile bugs and segfault bugs.
pam_imap now plays well with others by grabbing
passwords from other modules (like pam_unix.so)
instead of asking for it redundantly. This allows
the sysadmin to auth passwords both locally and
remotely on the same system with the same login
session.
