I have a brand new SBS 2008 Server with +- 20 users.
I have a problem where MAC mail/outlook 2011 and Black berry phones have stopped downloading their mail.
I can setup the accounts with no errors, and even send mail, just not download anything from the server (although the folder structure does download).
This was working and has now just randomly stopped. Ipads, Iphones and Windows machines are working fine.
The only thing that may be causing the issue, is that I installed Exchange 2007 SP3 (although it was working directly after that)
Any ideas? Pretty hard to troubleshoot, as there are no errors and everything seems to connect ok.
Testexchangeconnectivity.com has no errors either