Published: July 16, 2012
Applies to: Exchange 2013 | Exchange Online | Exchange Server 2010 Service Pack 1 (SP1)
The GlobalUniqueSender element contains a list of all the senders of conversation items in the mailbox.
The schema that describes this element is located in the IIS virtual directory that hosts Exchange Web Services.This element was introduced in Exchange Server 2010 Service Pack 1 (SP1).
Can be empty
July 16, 2012