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It might very well be due to a hotfix / patch or automatic update... So &quot;something&quot; has probably been &quot;changed&quot; under the hood.<br />
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Have you checked your SMTP service's relay settings?<br />
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It might very well be due to a hotfix / patch or automatic update... So "something" has probably been "changed" under the hood.

Have you checked your SMTP service's relay settings?




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The relay settings appear normal, however, in the event log I am seeing the following error:<br />
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Message delivery to the remote domain &lt;domain&gt; failed for the following reason: &nbsp;unable to deliver the message because the destination address was misconfigured as a mail loop
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The relay settings appear normal, however, in the event log I am seeing the following error:

Message delivery to the remote domain <domain> failed for the following reason:  unable to deliver the message because the destination address was misconfigured as a mail loop

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This question has been classified as abandoned and is being closed as part of the Cleanup Program. See my comment at the end of the question for more details.
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This question has been classified as abandoned and is being closed as part of the Cleanup Program. See my comment at the end of the question for more details.

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We have a customer with a Sharepoint site which has been receiving email normally for more than a year. &nbsp;Nothing on the server has been changed, but today users began reporting that emails to the site are being rejected with the error 550 5.7.1 Unable to relay for &lt;address&gt;.<br />
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I've tried restarting the SMTP service, but this didn't solve the problem.<br />
<br />
It is a Windows 2008 Server running SharePoint Services 3.0.
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We have a customer with a Sharepoint site which has been receiving email normally for more than a year.  Nothing on the server has been changed, but today users began reporting that emails to the site are being rejected with the error 550 5.7.1 Unable to relay for <address>.

I've tried restarting the SMTP service, but this didn't solve the problem.

It is a Windows 2008 Server running SharePoint Services 3.0.

Sharepoint incoming email problem

Microsoft Sharepoint is a software platform and family of software products used for collaboration and web publishing combined. These capabilities include developing web sites, portals, intranets, content management systems, search engines, wikis, blogs, and other tools for business intelligence and collaboration. SharePoint has a Microsoft Office-like interface, and it is closely integrated with the Office suite.