Re: reject_unknown_client_hostname allowing slight mismatch

2017-07-13 Thread Noel Jones
On 7/13/2017 2:26 PM, MRob wrote: > I have reject_unknown_client_hostname in smtpd_client_restrictions. > Some clients are able to pass this restriction with accompanying > warning when the hostname does not point to the IP address of the > client. The rDNS does point to the claimed hostname, whi

reject_unknown_client_hostname allowing slight mismatch

2017-07-13 Thread MRob
I have reject_unknown_client_hostname in smtpd_client_restrictions. Some clients are able to pass this restriction with accompanying warning when the hostname does not point to the IP address of the client. The rDNS does point to the claimed hostname, which seems to be why Postfix gives it a