Hi,
We have three exchange server orgs on premises. Federation of the email domains and organization relationships have been setup using local CA certificates and adding records to the host files to point the exchange servers to the correct cas server in the other orgs for autodiscover etc. (Two of the orgs are using .local AD domains, txt records were added to the external dns that matches the email domains for federation). I have tested the federation trusts and org relationships and there are no errors. But we still cannot see free/busy from the mailboxes in the other forests.
Does the users outlook mailbox need to use the autodiscover url - I assumed everything went through the CAS servers and then over the org relationship link ?
Thanks
