New Exchange fixes may disrupt Blackberry, Goodlink and other services

I understand the best practices part of this, I have already tried granted the adminSDholder permissions.  This still failed to resolve my issue.  I have had a call open with MS Support services for over a week now, as they still do not know how to get this working correctly.  It is very, very much of a problem on this end.  I have even gone so far as to delete the elevated permissions as a test on one of the mailboxes. This still failed to allow the user to send emails from their Blackberry.  So now I have to figure out the command syntax to remove the sendas permissions from the adminSDholder permissions....

The only way I see for this to work, is to remove your mailbox from your primary account.  Then instead of creating a new mail account on the secondary account, rejoin the old primary mailbox to the secondary mailbox.  The problem with the KB workaround is this...if I create a standard user account lets call it bbjdoe and my account with admin rights is called jdoe.  The KB article is not clear exactly what I am supposed to do with bbjdoe, so I assume I am to replace the jdoe account on the Blackberry server with bbjdoe.  So now my Blackberry device can send email messages, but now I no longer can receive email messages that are going to my jdoe account, because AD wants a unique email address for each account...you can't have jdoe@domain.com in two locations.  So I set up forwarding from the jdoe account to the bbjdoe account, still however all email messages being replied from the Blackberry account with show up as bbjdoe@domain.com.  Am I wrong here?  Help me understand this please.  I have already spent many of hours on this and have put critical projects behind schedule because of this change in behavior.