Having a setup of Postfix/Cyrus IMAP using LDAP-based user account/mailbox management I tried to extend this by pam_access today for disabling some of the mailboxes without deleting them. pam_access is a plugin for PAM, the Pluggable Authentication Modules, used to reject or grant access depending on a user’s name or origin of request. In a setup as described before this seems to be useful for disabling selected mailboxes e.g. to temporarily lock out tardy payers.
