We've configured the environment with spilt DNS. Things are somewhat working. here's what we are seeing:
1. Internal OWA connections seem to be ok for users with mailboxes moved from EX2003 to EX2010.
2. Internal OWA connections for users with mailboxes on EX2003 get two logons; one for the F5 and one for legacy OWA.
3. There's this wierd F5 search box showing up at the top of all our windows after logging in through the F5
4. External OWA connections are hitting the external VIP then authenticating through the APM then hitting the internal VIP; we could only get this to work if the pool member of the external VIP is a single object pointing to the internal VIP. Does this mean our external connections are NOT load balanced?
Another question somewhat unrelated is the prospect of simply doing reverse proxy on the external connection as opposed to the APM method of authenticating users. Any insight would be much helpful.