The GroupingInformation element contains a value that is used to group the user's mailbox to maintain affinity when subscribing to notifications across multiple mailboxes.
Applies to: Exchange 2013 | Exchange Online | Office 365
The following sections describe attributes, child elements, and parent elements.
Contains the specifications for connecting a client to the Exchange server.
The text value is compared to the value of the GroupingInformation element for other mailboxes. Mailboxes that have the same value and use the same Exchange Web Services (EWS) endpoint can be grouped together to maintain affinity. For more details, see How to: Maintain affinity between a group of subscriptions and the Mailbox server in Exchange.
The GroupingInformation element is only applicable to Protocol elements that have a Type (POX) child element with a value of "EXPR".