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have you added the smart host entry in the default smtp virtual server or the smtp connector?<br />
if it is the smtp virtual server, then remove it from there and use a smtp connector.
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Where have tou configured the Smart Host ?<br />
<br />
Is it in the SMTP Connector or teh SMTP VIrtual Host?
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I have an article from Microsoft that refers to the SMTP Virtual Host.<br />
<br />
<a href="http://support.microsoft.com/kb/821911" rel="ugc nofollow">http://support.microsoft.com/kb/821911</a><br />
<br />
So, that is what I did. &nbsp;Why would I want to do it on the SMTP Connector end?<br />
<br />
Thanks.<br />
<br />
Bob<br />

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Actually, I spoke with the smart host engineer and with a couple of adjustments within the smart host we were able to get it working just fine.<br />
<br />
However, if that didn't work then I would have gone the SMTP connector route next.<br />
<br />
Thanks again for all the wonderful advice.<br />
<br />
Have a great day.<br />
<br />
Bob<br />

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Hi<br />
<br />
we are facing teh same issue - what were the adjustments made on teh smarthost server?<br />
<br />
Thanks
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<div class="content wysiwyg-content">
Hi, I sure hope someone can assist me. &nbsp;I just set up a smart host (Sophos Appliance) in our environment. &nbsp;I can send/receive email just fine from outside our organization. &nbsp;However, &nbsp;I have two other internal mail servers that will stand alone and not utilize the Sophos filtering protection at this time (due to cost.) &nbsp;And my issue is related to these two other internal mail servers.<br />
<br />
I can receive email from the internal mail servers on my Exchange 2003 box, but cannot send from my Exchange 2003 box to these other two internal mail servers.<br />
<br />
I receive an &quot;Undelivered Mail Returned to Sender&quot; &nbsp;<br />
<br />
&quot;The mail system<br />
&lt;user@internalmailserver&gt;:<wbr /> host 123.45.678.9[123.45.678.9]<wbr /> said: 550 5.7.1<br />
&nbsp; &nbsp; Unable to relay for user@internalmailserver (in reply to RCPT TO<br />
&nbsp; &nbsp; command)&quot;<br />
<br />
<br />
However, if I remove the smart host entry on the Exchange box, I can send to the internal mail servers just fine.<br />
<br />
Anyone have any ideas?<br />
<br />
Thanks for your time.<br />
<br />
Bob<br />

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</div>


Hi, I sure hope someone can assist me.  I just set up a smart host (Sophos Appliance) in our environment.  I can send/receive email just fine from outside our organization.  However,  I have two other internal mail servers that will stand alone and not utilize the Sophos filtering protection at this time (due to cost.)  And my issue is related to these two other internal mail servers.

I can receive email from the internal mail servers on my Exchange 2003 box, but cannot send from my Exchange 2003 box to these other two internal mail servers.

I receive an "Undelivered Mail Returned to Sender"  

"The mail system
<user@internalmailserver>: host 123.45.678.9[123.45.678.9] said: 550 5.7.1
    Unable to relay for user@internalmailserver (in reply to RCPT TO
    command)"


However, if I remove the smart host entry on the Exchange box, I can send to the internal mail servers just fine.

Anyone have any ideas?

Thanks for your time.

Bob


Exchange 2003 Outbound mail using smart host not sending to internal mail servers

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.