Enda writes:
Sam Varshavchik wrote:That says to me that courier is trying to deliver this message to hoststudioalp.it even though its not listed as a mail exchanger for the domain.No, it doesn't say that.Ok, so I can then assume then that courier is connecting to the correct mx host to send the mail.I cannot see much from the logs that is going to help me track down the problem. I can telnet into port 25 of the remote host and queue a message. The only oddity that I see is when I manually connect to the remote mx, I must issue a carraige return before I get the 220 banner greeting. Would this be a likely cause of the standoff between the two mta's ??
Yes. If that's the case, the remote host does not implement SMTP, but rather some other unknown protocol. SMTP servers do not require any CRs before responding with their greeting.
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