On 18-Jan-2010, at 10:28, Stan Hoeppner wrote: > LuKreme put forth on 1/18/2010 12:46 AM: >> On Jan 17, 2010, at 17:27, Stan Hoeppner <s...@hardwarefreak.com> wrote: >>> Then I'd surmise your experience is very limited. >> >> I have only been running a mailserver for 17 years or so. > > Do you use either of these restrictions?
What's that have to do with anything? PTR records are not required for mailservers. Rejecting mail from mailservers without a PTR record _WILL_ cause you to lose some amount of valid email. how much depends entirely on what your mail looks like. What *I* accept is a very small subset of what is legal for mailservers. For example, I don't accept mailservers on DHCP pools, even though this is perfectly within the rules for a server (and of course, these servers have PTR records). I also don't accept mail from russian or korean mailservers, no matter how they are configured. As far as I know, there are no RFCs forbidding these countries from having mailservers. -- For a very few, the sky's the limit. And, sometimes, not even that. --Small Gods