why does postfix log sometimes "unknown[xx.xx.xx.xx]" when in fact the
reason for the reject is the PTR itself? sadly it's also missing in
the response in such cases and in case it would have been a legit
human person the only relevant debug information is missing
(disclaimer: there are 139 DUNNO rules in front to not catch any serverlike)
_______________________________________________________________________________
23.107.88.136.rdns.as15003.net (23.107.88.136)
RCPT from unknown[23.107.88.136]: 554 5.7.1 <unknown[23.107.88.136]>:
Unverified Client host rejected: Generic
DNS-Reverse-Lookup (PTR-Rule: 13)
_______________________________________________________________________________
identical rule hitted but correct logged and rejected
RCPT from 64-139-73-50-Chattanooga.hfc.comcastbusiness.net[64.139.73.50]: 554
5.7.1
<64-139-73-50-Chattanooga.hfc.comcastbusiness.net[64.139.73.50]>: Unverified
Client host rejected: Generic
DNS-Reverse-Lookup (PTR-Rule: 13)
_______________________________________________________________________________
/([0-9]{1,3}(\-|\.)[0-9]{1,3}(\-|\.)[0-9]{1,3}(\-|\.)[0-9]{1,3}.+[a-z0-9]+\.[a-z0-9]{2,6})$/
REJECT Generic
DNS-Reverse-Lookup (PTR-Rule: 13)
