* CT <gro...@obsd.us>: > It was a question that came up in a discussion.. > > I have had issues in the past when delivering email and I did not > have PTR in place.. the email was rejected..
That's not an MX problem, but a missing PTR. Postfix can check for this using: reject_unknown_reverse_client_hostname oder (more harsh) reject_unknown_client_hostname > so the question regarding "inbound MX lookups" came up so I figured I > would ask.. A MX lookup is performed to check if the sender domain exists; it can be activated using: reject_unknown_sender_domain -- Ralf Hildebrandt Geschäftsbereich IT | Abteilung Netzwerk Charité - Universitätsmedizin Berlin Campus Benjamin Franklin Hindenburgdamm 30 | D-12203 Berlin Tel. +49 30 450 570 155 | Fax: +49 30 450 570 962 ralf.hildebra...@charite.de | http://www.charite.de
