[ChrisSnape]

I think it is because BESAdmin Mailbox is still on the old Ex2003 server. Might have to take the plunge and move him over but was hoping to get the rest of the blackberry users over first...

It won't let me add BESAdmin to the Throttling group that I created on this website, task 6.

KB02276-Assigning service account permissions for a BlackBerry Enterprise Server for Microsoft Exchange

[knottyrope]

you have to move service account in step 3

KB22601-How to migrate from Microsoft Exchange Server 2003 or 2007 to Microsoft Exchange Server 2010 in a BlackBerry Enterprise Server 5.0 environment

[ChrisSnape]

Will the users still on the old Exchange 2003 server still be ok? That was my main concern in moving BESAdmin over.

[knottyrope]

yes they will be ok, CDO is backwards compatable to 2003

[ChrisSnape]

Went for it. Copied it over (after tweaking Domain Admin Access to BESAdmin), waited nervously. Tested existing handsets - OK! Tried new user sync on Ex2010 - OK!

Splendid splendid... Cheers!

[knottyrope]

glad to hear it