Hi,
How can I block senders via their "MAIL FROM:" input and give lets say 4xx
or 5xx at the SMTP communication level?
> EHLO asd
< 2xx xxxxxxxx
> MAIL FROM:<from@???>
< 5xx xxxxxxxxx...
PS1: I know this could be against some RFC yadda yadda's.... :)
PS2: domain1.dom is not a local domain.