On 2022-10-21, Lyndon Nerenberg (VE7TFX/VE6BBM) <lyn...@orthanc.ca> wrote: > My reading of smtpd.conf says that any reject action should be able > to take a message parameter. Yet the following line is rejected > with a syntax error message: > > match mail-from rdns regex "\.t-online\.de$" reject "550 5.7.1 you don't > accept our mail, so we don't accept yours."
You didn't want to publish an impressum on a website associated with your mail server's domain then? ;) (For those that don't know, it seems that T-Online.de block incoming email from most IPs by default and anyone wanting to send them mail has to explicitly contact them to ask permissions, and they make you jump through hoops before they'll grant that - see recent posts on the mailop list for more. It is quite astonishing.)