I've got 5 people using BES without issues. Today I've added a 6th person and their account is not working. Shutting down BES completely and opening the BlackberryServer Outlook profile shows that their account is not getting synchronized from Zimbra. As expected, when the user tries to activate the device, the message pops up in their inbox from RIM, but never gets picked up on BES.
I think somewhat related to this is the fact that from the BES server, the GAL is not fully populated with all of the users from the server. It's missing at least half my users (We use an external GAL only on Zimbra). The user I'm attempting to add does show up in the GAL however, and I'm able to add them to BES via the BES Mgr app.
I have debug logs that I can make available if someone will PM me I'll be happy to provide a URL to download them.
Any other ideas?