We moved a client away from their local exchange server a while again and transferred them to hosted exchange.
They have two domain names, the main company one is now in the cloud and the other franchisee one is still using the local exchange server.
We have removed all reference of the main domain name from the local exchange server so it doesn't get confused.
My issue is that every time the hosting company of the hosted emails makes a change it causes major issues in users connecting again.
We know when an update has been done, e.g. when a user opens outlook it says something on the lines of - administrators have made a change, restart outlook to take affect.
When we do that outlook will not connect to exchange again - it just says 'trying to connect'
Sometimes we run a mailbox repair and that fixes it bit its causing us a nightmare.
We have tested the autodiscover CNAME record and that's pointing at the correct name - autodiscover.messageexchange.com
Can anyone help?