Hot answers tagged imap
Maybe the Email Address Crawler Plugin is a solution for you? EMail Address Crawler by CySlider Automatically fill your address books or send mass mails with e-mail addresses extracted from all your e-mails. It is a bit outdated, but there is stated by someone it that still worked in 17.0, so maybe it still works
I've no experience with courier, but it seems that it has multiple auth modules, among them authuserdb module http://www.courier-mta.org/authlib/README_authlib.html#authuserdb It basicaly use similar to /etc/passwd file format, but in another file. There are also authmysql, authpgsql, authsqlite and authldap modules which can use databases or LDAP as ...
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