An ambiguous SMTP proxy was found on mailboxes in the DS. The store cannot map this SMTP proxy to a unique Mailbox GUID.

Details
Product: Exchange
Event ID: 9549
Source: MSExchangeIS
Version: 6.5.6940.0
Component: Microsoft Exchange Information Store
Message: An ambiguous SMTP proxy <name> was found on <number> mailboxes in the DS. The store cannot map this SMTP proxy to a unique Mailbox GUID.
   
Explanation

This event is caused by having duplicate proxies (someone@microsoft.com for example) on two or more objects. Administrators should determine which proxies have duplicates and remove those that are incorrect.

   
User Action

Change the Simple Mail Transfer Protocol (SMTP) e-mail address of one of the mailboxes, so that each mailbox has a unique address.

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