I'm having problems with my ispconfig server.
Some servers are rejecting emails sent from it with the error:
Client host rejected: cannot find your reverse hostname, [188.8.131.52] (in
reply to RCPT TO command).
My ispconfig server is ip 184.108.40.206
My router address is 220.127.116.11
I have setup reverse dns and when i check it at 18.104.22.168 then my hostname is returned correctly.
Why would the mail that is sent be trying to check reverse dns on my routers ip address?
Any help regarding this would be apreciated