Quick overview :
- 3 exchange servers
- DC1 - Mailbox, CAS, HT
- DC2 - Mailbox, HT
- DC3 - Mailbox, HT
Any mailboxes that are located on DC2 or DC3 are coming up with :
Outlook Web App isn't available. If the problem continues, please contact your helpdesk. When trying to access them via activesync or via webmail.
What is best practice here? Do the other servers need a CAS role?
They are connected over a managed WAN.