Traversing the Inbox Folder

    To cycle through all of the messages in the Inbox

1. Call IMsgStore::GetReceiveFolder to retrieve the entry identifier of the Inbox.
2. Call IMAPIFolder::OpenEntry to open the Inbox.
3. Call the Inbox's IMAPIContainer::GetContentsTable method to retrieve the contents table.
4. Call the contents table's IMAPITable::SetColumns method to limit the column set to PR_ENTRYID and any other columns you require.
5. Call IMAPITable::QueryRows to retrieve a group of rows.
6. Until there are no longer any rows in the contents table:
   1. Call IMsgStore::OpenEntry to open the message represented by the entry identifier from each row.
   2. Assign the lppUnk parameter to a local IMessage interface pointer.
   3. Work with the properties of the message.
   4. Release the pointer pointed to by the lppUnk parameter.
   5. Call IMAPITable::QueryRows to retrieve the next group of rows.
7. Release the contents table.