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MSExchangeAB Event ID 1008 The endpoint is a duplicate (1740) After migration from SBS 2003

jinfeld asked
Last Modified: 2016-03-07
After migrating from SBS 2003 to SBS 2011, Exchange 2010 was working well. After 20 days I uninstalled Exchange on the old server, ran dcpromo to remove active directory and things still ran well. Then I rebooted the old server and the error in the title started to appear and I can't start the Microsoft Exchange Address Book service. It doesn't seem to affect the users who are on Outlook 2003, 2007 and 2010. How do I locate that duplicate endpoint and kill it?
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