Applies to: Exchange Online | Exchange Server 2013 | Office 365
The GlobalLastDeliveryTime element contains the delivery time of the message that was last received in this conversation across all folders in the mailbox.
The text value of the GlobalLastDeliveryTime element is the date and time of the message that was last received in this conversation across all folders in the mailbox.
This element was introduced in Exchange Server 2010 Service Pack 1 (SP1).The schema that describes this element is located in the IIS virtual directory that hosts Exchange Web Services.