Can't receive e-mail from a particular domain - error 451
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Can't receive e-mail from a particular domain - error 451

 
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Jeremy
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Posted: Wed Nov 30, 2005 1:58 am    Post subject: Can't receive e-mail from a particular domain - error 451 Reply with quote

When a user from one of our customer's domain tries to send us an e-mail (or
reply to one he received from us) he is receiving a bounce:

----begin bounce e-mail body-----

451 4.4.1 reply: read error from mail.ourdomain.com.
<user@ourdomain.com>... Deferred
Warning: message still undelivered after 2 hours
Will keep trying until message is 5 days old

----end bounce e-mail body-----

The message never gets through to us, also this has just recently started
happening (he used to be able to send to us)...

I cannot think of anything that has changed on our end. Before I try and
track down someone in their organization who would be resposible for e-mail,
I thought I check here to see if anyone could provide me with some potential
causes for this particular error...

Here are a couple of attachments to the bounced notification e-mail he
receives as well:

----begin bounce attachment 1-----

Reporting-MTA: dns; imbaspam-nj03.iplex.ssmb.com
Arrival-Date: Tue, 29 Nov 2005 15:39:48 GMT

Final-Recipient: RFC822; user@ourdomain.com
Action: delayed
Status: 4.4.2
Last-Attempt-Date: Tue, 29 Nov 2005 18:00:40 GMT
Will-Retry-Until: Sun, 4 Dec 2005 15:39:48 GMT

----end bounce attachment 1-----

----begin bounce attachment 2-----

Return-Path: <user@theirdomain.com>
Received: from imbarc-ny02.ny.ssmb.com (imbarc-ny02-1 [162.124.186.139])
by imbaspam-nj03.iplex.ssmb.com (8.13.4/8.13.4/SSMB_EXT/ev: 12091 $) with
ESMTP id jATFdicD000895
for <user@ourdomain.com>; Tue, 29 Nov 2005 15:39:48 GMT
Received: from mailhub-nyc4-1.ny.ssmb.com (mailhub-nyc4-1.ny.ssmb.com
[162.124.152.39])
by imbarc-ny02.ny.ssmb.com (8.13.1/8.13.1/SSMB_QQQ_IN/1.1) with ESMTP id
jATFd7KC016902
for <user@ourdomain.com>; Tue, 29 Nov 2005 15:39:07 GMT
Received: from exnjsm10.nam.nsroot.net (EXNJSM10.nam.nsroot.net
[169.193.44.30])
by mailhub-nyc4-1.ny.ssmb.com (8.12.10/8.12.10/CG_HUB) with ESMTP id
jATFZixd003669
for <user@ourdomain.com>; Tue, 29 Nov 2005 15:38:59 GMT
Received: from exnjmb10.nam.nsroot.net ([150.110.137.47]) by
exnjsm10.nam.nsroot.net with Microsoft SMTPSVC(5.0.2195.6713);
Tue, 29 Nov 2005 10:31:18 -0500
X-MimeOLE: Produced By Microsoft Exchange V6.0.6603.0
Content-Class: urn:content-classes:message
MIME-Version: 1.0
Content-Type: multipart/alternative;
boundary="----_=_NextPart_001_01C5F4F9.EF326FC2"
Disposition-Notification-To: "Their Name" <user@theirdomain.com>
Subject: RE: E-mail troubles, continued
Date: Tue, 29 Nov 2005 10:31:14 -0500
Message-ID: <94CB578F28F927469B8E324BBA8E055A05FD8D9B@EXNJMB10.nam.nsroot.net>
X-MS-Has-Attach:
X-MS-TNEF-Correlator:
Thread-Topic: E-mail troubles, continued
thread-index: AcX0+Y0p+OIEwcfNSFSjXmhvNDAnfwAAFinQ
From: "Their Name" <user@theirdomain.com>
To: "My Name" <user@ourdomain.com>
X-OriginalArrivalTime: 29 Nov 2005 15:31:18.0479 (UTC)
FILETIME=[F172BDF0:01C5F4F9]
X-Scanned-By: MIMEDefang 2.52 on 199.67.177.247

----end bounce attachment 2-----

I hope that these messages mean something to somebody... :)

Thank you in advance for any thoughts as to the cause of their e-mail to us
bouncing!

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