<div>
Read this<br />
<br />
<a href="http://support.microsoft.com/kb/872896" rel="ugc nofollow">http://support.microsoft.com/kb/872896</a>
</div>


Read this

http://support.microsoft.com/kb/872896 [http://support.microsoft.com/kb/872896]

<div>
Check this too<br />
<br />
<a href="http://www.msexchange.org/articles/Finding-Duplicate-SMTP-Addresses.html" rel="ugc">http://www.msexchange.org/articles/Finding-Duplicate-SMTP-Addresses.html</a>
</div>


Check this too

http://www.msexchange.org/articles/Finding-Duplicate-SMTP-Addresses.html [http://www.msexchange.org/articles/Finding-Duplicate-SMTP-Addresses.html]

<div>
Seems to be duplicate email address issue. Find it and remove it. Steps are given in the above article
</div>


Seems to be duplicate email address issue. Find it and remove it. Steps are given in the above article

<div>
deleted the external email stored in outlook and typed it manually.
</div>


deleted the external email stored in outlook and typed it manually.

<div>
<div class="content wysiwyg-content">
Hi,<br />
<br />
One of the users is trying to send an external email but gets the following bounced back email. The user is able to recieve the email from that external email address. any suggestions?<br />
<br />
Your message did not reach some or all of the intended recipients.<br />
<br />
&nbsp; &nbsp; &nbsp; Subject: &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Email<br />
&nbsp; &nbsp; &nbsp; Sent: &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;21/02/2011 12:41<br />
<br />
The following recipient(s) cannot be reached:<br />
<br />
&nbsp; &nbsp; &nbsp; 'External email id' on 21/02/2011 12:41<br />
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; None of your e-mail accounts could send to this recipient.<br />

</div>
</div>


Hi,

One of the users is trying to send an external email but gets the following bounced back email. The user is able to recieve the email from that external email address. any suggestions?

Your message did not reach some or all of the intended recipients.

      Subject:	Email
      Sent:	21/02/2011 12:41

The following recipient(s) cannot be reached:

      'External email id' on 21/02/2011 12:41
            None of your e-mail accounts could send to this recipient.


Your message did not reach some or all of the intended recipients.

Exchange is the server side of a collaborative application product that is part of the Microsoft Server infrastructure. Exchange's major features include email, calendaring, contacts and tasks, support for mobile and web-based access to information, and support for data storage.

Exchange

Microsoft Outlook is a personal information manager from Microsoft, available as a part of the Microsoft Office suite. Although often used mainly as an email application, it also includes a calendar, task manager, contact manager, note-taker, journal, and web browser.