The Network Administrator

We recently updated our Microsoft Exchange Server from 2003 to 2010. As a result of that upgrade we needed to upgrade our Blackberry enterprise server from version 4.6 to version 5.0. Everything went well, I was able to perform an in place upgrade, after moving my SQL database off to a separate database server. I was also able to finally get all BES services to run as a regular Domain user instead of a domain administrator which was a pretty regular practice with previous versions.

In an effort to save someone else a lot of time troubleshooting with RIM, I will say this…
If you getting ready to upgrade to BES version 5 and you have exchange 2010, please make sure that you have done the following to ensure there are no communications issues between exchange 2010 and the BES.

In order to enable full support, three updates are required:

Roll-Up 1 (RU1) for Exchange Server 2010
MAPI v6.5.8147
BlackBerry Enterprise Server 5.0.1 Maintenance Release 1 (MR1)
All three of these updates are available to customers of Exchange Server 2010 and BlackBerry Enterprise Server v.5.0 with Service Pack 1 at no cost. BlackBerry Enterprise Server v5.0 Service Pack 1 and Maintenance Release 1 can be found here: http://www.blackberry.com/support/downloads

Also this is where to get the upgrade/install guide from RIM

http://docs.blackberry.com/en/admin/subcategories/?userType=2&category=BlackBerry+Enterprise+Server+for+Microsoft+Exchange