Lucas Bergman: > Nov 25 14:06:23 gob postfix/smtpd[19293]: NOQUEUE: reject: RCPT from > unknown[12.229.68.221]: 450 4.1.8 <circ...@lcplin.org>: Sender address > rejected: Domain not found; from=<circ...@lcplin.org> to=<[REDACTED]@ > BERGMANS.US> proto=ESMTP helo=<sangria.lcplin.org>
450 Means that Postfix did not receive a DNS reply. There could
have been a network outage, or your link was saturated, or whatever.
Wietse
