296707Re: Client host name resolution
- Nov 18, 2013E.B. wrote:
> Hello,For Postfix to include the rDNS in the log and Received: header, the PTR
> My understanding was clients for whom you see this in the logs:
> connect from unknown[220.127.116.11]
> Do not have a PTR/rDNS set up for themselves.
name must then resolve back to that same IP as well.
Sometimes there will be a PTR record, but no matching A record.
Also keep in mind that if there is a temporary glitch in DNS resolution,
either the PTR or A lookup might fail when the message first passes
through, but looks fine later on when you check by hand.
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