Determining if the hidden BlackBerryHandHeldInfo folder is necessary to sync cross forest with QMM (4266238)

In some scenarios, the MSA may throw MAPI errors when trying to package the hidden BlackBerry folder in a BES user's mailbox. The purpose of this article is confirm expected behavior in the below scenarios where migration of the hidden BlackBerry folders may not be required. If the mailboxes for these users are being synced to a new Exchange organization in a separate forest, QMM agents may not be required to sync the folder, and therefore setting QMM to skip the hidden folder's message class (SOL73891) may be plausible in the following cross forest migration scenarios: