On 12/24/2011 9:37 PM, Nick Edwards wrote: > Merry Christmas All! > > I am wondering why I have two different errors for same reason? > > : NOQUEUE: reject: RCPT from unknown[41.203.141.1]: 450 4.7.1 Client > host rejected: cannot find your hostname, > > : NOQUEUE: reject: RCPT from unknown[115.153.142.125]: 550 5.7.1 > Client host rejected: cannot find your hostname > > I would prefer all of these 5xx > > But there appears to be two different checks here reporting the same > reason.
Both these messages are from reject_unknown_client_hostname. Maybe consulting the docs will give a clue as to why one is 4xx and one is 5xx. http://www.postfix.org/postconf.5.html#reject_unknown_client_hostname Also note that this restriction is known to reject a considerable amount of legit mail. Use with caution. -- Noel Jones
