BlackBerry Users cannot send or receive emails after Exchange reboot


You have restarted your Exchange server after applying some updates, and now your BlackBerry users are complaining that emails are not coming through. Even though emails they send from their BlackBerrys seem to send fine, the recipients are not receiving them either.


Restart the BlackBerry Enterprise Services (BES) server or individual services.

What happens after rebooting an Exchange server is that BES loses the MAPI connections, and cannot reconnect when the Exchange server comes back online.

Read more here to automate this process: