Sorry folks, I'm not entirely there today. Receiving MX may of course be temporarily gone from DNS, so 450 it is. Pleas allow this thread to disappear into oblivion. :-)
Den 21. okt. 2018 15:47, skrev Håkon Alstadheim: > I have a rather convoluted multi-instance setup that mostly works to my > liking, with spam-filters, hand-off to mailman, dkim-signing and > whatnot. One problem is that mis-typed outgoing addresses (host part) > from my local, authenticated users end up deferred (450) and not bounced > back to the sender. I am a bit wary of enabling bounces, but if I can > make sure that I don't bounce incoming mail, I should be OK. > > Long story short, If in a specific postfix instance I am SURE I'm only > handling mail submitted by authenticated users, I should be OK to change > unknown_address_reject_code to 550 ? > > I don't want to do the change in submit (before queue) because I have a > dance with DKIM signing before handing off to address-mapping and > further to relay/local delivery/mailman, >
