I recently migrated my exchange 2007 to exchange 2013.
Active Sync worked perfectly with the old server.
I have an issue with Exchange 2013. Only several mailboxes can be synchronized and it is impossible with all others.
I don't understand why it is working for 2 ou 3 people and not for everyone...
I am able to configure one mailbox on my mobile phone and not some others mailboxes....
Thanks in advance for your help.