Originally Posted by shiramo
I just have one or two questions.
Currently, we are using BES 4.1.7 in an Exchange 2003 environment.
Both are going to be upgraded in the near future, but the management for any reason decided to upgrade exchange first - so I think this can become a little difficult.
What I thought of is creating a coexistense and migrate only non blackberry users to exch 2010. The besadmin and blackberry users will stay on exch 2003 - is this a point that should work? YES that can work.
Is there any other way? like migrating all users to exch 2010 and keep the besadmin on exch 2003? No that wont work, 4.1.7 can not read from Exchange 2010 mailboxes.
iŽd appreciate some help
you should be fine with your plan of keeping 2003 for BES