Hi all,Is there a way to limit/restrict the usernames that are allowed to use our postfix dovecot-sasl authenticated smtp relay?
We would like only *specific* usernames to be able to use the authenticated relay. And currently everybody with dovecot imap access can also use the relay. Is there a way to restrict that?
A simple list of usernames would work, or more advanced: dynamically using an ldap lookup to check group membership.
Thanks in advance for pointers/tips, MJ