> Our company uses a mail filter comprised of Postfix, Amavisd-new,
> ClamAV, Postgrey, etc. We are having an issue receiving mail from a
> large corporate site.
> Reviewing the logs, I *think* the following entry might be a clue:
> Oct 19 14:57:06 maildrop postfix/smtpd: NOQUEUE:
> This happens even though Amavisd continues processing and gives the
> go-ahead "354 End data with <CR><LF>.<CR><LF>" sometime after the log
> entry above. The problem is that the sending server never sends
> anything in response to the go-ahead and so Amavisd times out 120
> seconds later.
> Sorry for being dense, but I need to know exactly what the NOQUEUE log
> entry means so I can troubleshoot further. I notice that other NOQUEUE
> log entries contain a descriptive error code and verbose reason. How
> can I determine why Postfix objects to this connection?
The best way to get cooperation from this mailing list is to claim
that Postfix rejects mail without a reason.
NOQUEUE means that either Postfix has not yet created a queue file,
or that it is giving the mail to a before-queue content filter.
If you want to find out what the remote client does or does not
send, make a recording with tcpdump as described in DEBUG_README.html.