The Courier Authentication Library is a generic authentication API used
for two purposes:

1. Read the name of a mail account. Determine the local account's home
   directory, and system userid and groupid.
2. Read an account name, and a password. If valid, determine the
   account's home directory, system userid, and groupid.

The base package only installs the authpam authentication module to
obtain account information and passwords using PAM

Other plugin authentication modules are provided:

	net/courier-authlib-ldap		OpenLDAP
	databases/courier-authlib-mysql		MySQL
	databases/courier-authlib-pgsql		PostgreSQL
	databases/courier-authlib-userdb	libc db based
	databases/courier-authlib-usergdbm	gdbm dependant
	mail/courier-authlib-vchkpw		vpopmail/vchkpw

Install them as occasion demands.

WWW:	http://www.Courier-MTA.org/authlib/