BB bold gets an X when trying to send emails...
 

I have this one bb bold coming from At&t BIS, I set up the BB to sync with our BES, now it gets an X when trying to send email. I tried resending the service book, desktop [sync] & desktop [cical], nothing works... Can someone help?
:?

Try deleting the service books and redo enterprise activation.

Open the message with the red X. Scroll up and what does it show next to status?

You said the unit is connected to a BES, does the user's AD account have your BB Service account added to the Security list? Make sure the 'Send As' attribute is checked.