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how many global catalogs do you have?
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I have two DC's in my site which are GC's as well
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I have two DC's in my site which are GC's as well

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Hi,<br />
Do you have any thing to share on this issue or this can be deleted instead of keeping it as open question<br />

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Hi,
Do you have any thing to share on this issue or this can be deleted instead of keeping it as open question


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When I restart any of Domain controllers in my site, Exchange server is generating NDR's with &quot;smtp;550 5.7.1&quot;. AFAIK, exchange 2003 should be intelligent enough to wait for a failed DC for sometime and switch over to another DC. But it is not happening in my case, when ever I reboot one DC, exchange is throwing NDR's for mails which came for processing at that time. And after few mins it is not generating NDR's for further mails. All the DCs in my site are GCs.<br />
<br />
Any one have idea why it is happening this way?
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When I restart any of Domain controllers in my site, Exchange server is generating NDR's with "smtp;550 5.7.1". AFAIK, exchange 2003 should be intelligent enough to wait for a failed DC for sometime and switch over to another DC. But it is not happening in my case, when ever I reboot one DC, exchange is throwing NDR's for mails which came for processing at that time. And after few mins it is not generating NDR's for further mails. All the DCs in my site are GCs.

Any one have idea why it is happening this way?

Restarting Domain Controllers causing NDR's from Exchange servers

Windows Server 2003 was based on Windows XP and was released in four editions: Web, Standard, Enterprise and Datacenter. It also had derivative versions for clusters, storage and Microsoft’s Small Business Server. Important upgrades included integrating Internet Information Services (IIS), improvements to Active Directory (AD) and Group Policy (GP), and the migration to Automated System Recovery (ASR).

Windows Server 2003

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

Active Directory (AD) is a Microsoft brand for identity-related capabilities. In the on-premises world, Windows Server AD provides a set of identity capabilities and services, and is hugely popular (88% of Fortune 1000 and 95% of enterprises use AD). This topic includes all things Active Directory including DNS, Group Policy, DFS, troubleshooting, ADFS, and all other topics under the Microsoft AD and identity umbrella.