I am trying to find an answer which i am unable to.

As in exchange 2013, CAS is doing proxy so no rendering stuff, cookie based authentication so if one CAS server is rebooted, no need to re authenticate or pop-up screen for logon credentials as in Exchange 2010 when user were connected before reboot.

However if database moves from one server to other as part of DAG, does it require any relogin? for user who were connected to before move?

2nd. For Exchange 2010 : Do we have any solution where user don't need to re login in case where he was logged in to a CAS Server and CAS server re

I am trying to find an answer which i am unable to.

As in exchange 2013, CAS is doing proxy so no rendering stuff, cookie based authentication so if one CAS server is rebooted, no need to re authenticate or pop-up screen for logon credentials as in Exchange 2010 when user were connected before reboot.

However if database moves from one server to other as part of DAG, does it require any relogin? for user who were connected to before move?

2nd. For Exchange 2010 : Do we have any solution where user don't need to re login in case where he was logged in to a CAS Server and CAS server re

Outlook anywhere is not used, it is MAPI clien