TFA is so wrong on so many levels, I do not even know where to begin with. It surely does not make me want to rush to test the author's MTA. Unless he's talkin

TFA is so wrong on so many levels, I do not even know where to begin with. It surely does not make me want to rush to test the author's MTA. Unless he's talking of a one mailbox server, accepting outgoing only from localhost and somehow endowed with a non residential ip (or good luck with rdns, rbls, etc.). But that was always trivial, post UUCP era. Background: I've been running mail servers from 1996, several different MTAs, for my company and for customers. Getting the thing up and running is not (very) hard -for a primary MX net facing machine. That's where work begins though. My primary MTA is still sendmail, and sendmail.cf was never one of my problems - I do not have a degree in compilers, whatever that is, and surely I never read sendmail.cf