Temporary MTA failure on relaying (rw_loop)

Alex mysqlstudent at gmail.com
Thu May 29 06:00:07 CEST 2014

Hi all,

I'm using amavisd-new-2.8.1 on fedora20 and I've started to occasionally
find the following in the logs:

May 28 09:39:38 mail03 postfix/smtp[14293]: 4D45560B4A0: to=<
33141 at example.com>, relay=[]:10024, delay=43,
delays=0.79/0.29/0.56/41, dsn=4.5.0, status=deferred (host[] said: 451 4.5.0 id=16881-01 - Temporary MTA failure on
relaying, From MTA() during fwd-connect (No greeting, dt: 35.021 s):
id=16881-01 (in reply to end of DATA command))
May 28 09:39:39 mail03 postfix/cleanup[16722]: DE58B60B4CD: message-id=<
3gdtSV07N9z66Vd at mr5.mr.bmdeda99.com>
May 28 09:39:39 mail03 amavis[16885]: (16885-01) (!)rw_loop: leaving rw
loop, no progress, last event (select) 35.035 s ago
May 28 09:39:39 mail03 amavis[16885]: (16885-01) mail_via_smtp: session
failed: No greeting, dt: 35.035 s
May 28 09:39:39 mail03 amavis[16885]: (16885-01) (!)FWD from <
dan.344D07.26320A1 at mr4.mr.bmdeda99.com> -> <34140 at example.com>, 451 4.5.0
>From MTA() during fwd-connect (No greeting, dt: 35.035 s): id=16885-01
May 28 09:39:39 mail03 amavis[16881]: (16881-01-2) ESMTP:[]:10024
/var/spool/amavisd/tmp/amavis-20140528T093857-16881-rUuP8hQe: <
dan.344D07.26321F8 at mr4.mr.bmdeda99.com> -> <50085 at example.com> SIZE=15574
Received: from mail03.example.com ([]) by localhost (
mail03.example.com []) (amavisd-new, port 10024) with ESMTP for <
50085 at example.com>; Wed, 28 May 2014 09:39:39 -0400 (EDT)

I have three servers that were configured identically, and this is the only
one with this issue. Does anyone have an idea what could be causing this?
Is the sender notified of this issue, or only through localhost?

What does "rw_loop: leaving rw loop" mean?

Thanks for any ideas.
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