"Mark A. Lewis" <mark at siliconjunkie.net> writes: > Lets say that Acme Widget has their mail hosted with Hostco. Acme Widget > would rather not have mail.hostco.com in the mail headers for whatever > reason. So, hostco doesn't setup a ptr record for it. This does not make > Acme Widget or Hostco any more likely to be spammers, it just makes you > more likely to drop their mail. Actually, the problem you're describing is routinely solved at any decent ISP *without* breaking any rules. If the above were a genuine scenario, I would conclude that Hostco is run by nincompoops. ;-) -tih -- Don't ascribe to stupidity what can be adequately explained by ignorance.