On Mon, 2008-09-22 at 10:58 -0500, Matt wrote: > >> > I had the same issue and found that the system that's relaying > >> > (216.129.105.40) those confirmation emails doesn't have a PTR record. > >> > You'd think someone selling a antispam/email appliance would be familiar > >> > with the RFCs. > >> > > >> That would explain why I got no confirmation, we do not accept email > >> from IP's without a PTR record. > >> > >> I agree, if true this looks pretty bad for a so called antispam > >> company. > > > > In fairness -- if you drop mail with no rDNS, you are dropping 3.6% of > > legit email in general, going by the test results for our RDNS_NONE > > rule... ;) > > Everyone should block/defer ALL email with no reverse DNS. Then maybe > those email admins would get a clue. >
We tried, But when the client yells "I am losing my mails", you got to change your rules
