Ihac that wants to use the Enterprise Vault add-in for OWA.
When I use the address web01/owa I can see and use the buttons from EV and I can open a shortcut to see the original item. Archive Explorer & Archive Search both work normally.
If I use the FQDN of the CAS server web01.Company.Location/owa I do not get the EV buttons or functionality. A click on a short cut will only open the short cut and the buttons for search and explorer are not shown.
I cannot fathom how this can make a difference because the systems that are allowed access are defined by an IP number.
Whatever name you use it should use the same IP address.. (NETBios or FQDN)
I cannot find additional info for this particular issue..
environment:
EV: Windows Server 2008 R2 Standard x64, Enterprise Vault 10.0.4
EXCH: Windows Server 2008 R2 x64, Exchange 2010 with a dedicated CAS on a VM