Roderick A. Anderson a écrit : > With all the traffic recently on DNS and friends I got overloaded and > stopped reading. :-( > > But now I've run into a situation that I don't remember seeing addressed. > > How will Postfix deal with a machine that has two different names for > the same IP and multiple PTR records? >
The first question to ask is: why use multiple PTRs? people are often confused and think that multiple PTRs are needed for "virtual hosting". virtual hosting uses multiple A records. anyway, as has been said, postfix and other servers will use the first PTR returned by the resolver. in the case of round robin, this may be any of the listed PTRs. and if the server requires "confirmed" rDNS, then it means you need more work to get it right (for each PTR, you need to setup an A record pointing to the client IP).
