I ran these commands in the shell and was able to get the BES talking with Exchange:


add-exchangeadministrator “BESAdmin” –role ViewOnlyAdmin (then press enter)
2. get-mailboxserver (Exchange Server Name) | add-adpermission –user “BESAdmin” –accessrights GenericRead –extendedrights Send-As, Receive-As, ms-Exch-Store-Admin (then press enter)

Also, I did NOT uninstall System Manager 2003, or install a new MAPI.

I upgraded from 4.1 to 4.1.3, transitioned from Exchanged 2003 to 2007 and everything works great.