Event ID - 2117

Event Id2117
DescriptionNon delivery report generated. From:<network>/<PO>/<User ID>Subject: <Some Subject>[030] Message contains duplicated Email address. Mail item was not delivered to:<network>/<PO>/<User ID>
Event InformationAccording to Microsoft:
The [030] message means the MSMI found duplicate e-mail addresses when it tried to match the address against the directory.
To resolve this problem:
Check for the existence of duplicate addresses in the Exchange Server Global Address List (GAL); to do this, on the Tools menu, click Find Recipients and search in the Exchange GAL. Delete duplicate addresses.
Reference LinksXFOR: Err Msg: Message Contains Duplicate E-mail Address

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