Hello, I have a number of authenticated senders I would like to restrict to certain recipient domains.
I.e. user "apachel...@example.org" should only be able to send emails to domains "example.org" and "foobarbaz.com". Recipient/s with any other domain (e.g. "exam...@gmail.com") should be rejected. If this possible at all, what do I need to look at? Regards
