troubleshooting Question

Some domains do not receive emails from our domain

Avatar of Zaurb
Zaurb asked on
ExchangeEmail ProtocolsTelecommunications
6 Comments1 Solution880 ViewsLast Modified:
I have a very urgent problem.
Our users can send emails to other domains and receive all emails from all other domains. However, for about a week or so we can't send emails to users in two-three other domains. We receive an ndr stating that:

eTrust Secure Content Manager SMTPMAIL could not deliver the e-mail below because of unreachable host Please check the recipients e-mail address before you try again:

Original message header:

X-eSCM-MailFrom: <>
X-eSCM-FileID: smtp_48344A7F_1375_0000.oub
Received: from (
      by (;
      Wed, 21 May 2008 18:14:55 +0200
Content-class: urn:content-classes:message
MIME-Version: 1.0
Content-Type: multipart/alternative;
X-MimeOLE: Produced By Microsoft Exchange V6.5
Subject: test
Date: Wed, 21 May 2008 18:14:54 +0200
Message-ID: <smtp_48344A7F_1375_0002.eml@ourdomainserver.ourdomain.local>
Thread-Topic: test
Thread-Index: Aci7Xc3xDjdtY/ydRIq5uBxrVdec+w==
From: "Bahramov Zaur" <>
To: <>

What is going on? Now, while I write this I received complains that there're more domains that can't receive emails from us.
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