Contains an enumeration of the retractType options.
<RetractType> <enumeration value="myMailbox"/> <enumeration value="recipientMailboxes"/> <enumeration value="allMailboxes"/>
Specifies to retract the item only from my mailbox and to leave the item in the recipients’ mailboxes.
Specifies to retract the item only from recipients’ mailboxes and to leave the item in the sender’s mailboxes.
Specifies to retract the item from all mailboxes.