Andrew - Supernews wrote: >>>>>> "Renaud" == Renaud Allard <[EMAIL PROTECTED]> writes: > > Renaud> You should maybe add some info about how the HELO of a > Renaud> mailserver should be resolved. > > Renaud> So the best way would be HELO == A == PTR > > HELO == A == PTR is best _only_ if the PTR record value is not generic. >
That should be inserted too indeed, it seemed almost trivial to me :) > If you control the PTR record, then set it to a non-generic value > (mail.example.com rather than ip-192-0-2-25.example.com). > > If you _don't_ control the PTR record, and the upstream has it set to > a generic value, then having the HELO == A being a non-generic name is more > important than HELO == PTR. > > (There are a handful of loons who will block you for HELO != PTR, but these > are vastly outnumbered by the people who will (directly or indirectly) block > you for HELO == generic name. A smaller number of people will block you for > PTR == generic name, but you either have to put up with that or get control > of your PTR records, in which case see above.) > > (Another myth that seems widespread is the HELO == MAIL FROM domain > one, which is completely spurious. I would love to know how this one > got started.) > -- 010100100110010101101110011000010111010101100100 010000010110110001101100011000010111001001100100
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