Noel and others, > In the specific case of "Relay access denied" it will always > be the recipient address, but there are other reasons for mail > to be rejected. > > That section of the log line shows "what" was rejected along > with a brief text description/reason. > > The "what" can be any part of the SMTP envelope; client, HELO, > sender, recipient, or in the case of header/body checks, the > text that matched the rule.
thanks a lot. THAT was the information I was looking for. Problem solved. Despite of various checks, the client/user still had a typo in his SMTP auth configuration (*snarf*). Thanks Tom