Contains an enumeration of item types.
<MessageType> <enumeration value="Appointment"/> <enumeration value="CalendarItem"/> <enumeration value="DocumentReference"/> <enumeration value="Mail"/> <enumeration value="Note"/> <enumeration value="PhoneMessage"/> <enumeration value="Task"/>
Specifies that the item is an appointment.
Specifies that the item is an appointment, note, or task.
Specifies that the item is a document reference.
Specifies that the item is a mail item.
Specifies that the item is a note.
Specifies that the item is a phone item.
Specifies that the item is a task.