We have 1 Exchange Server 2003 co-existing with 1 CAS and 2 Mailbox servers.
Exchange 2010 mailbox users CAN use Exchange 2010 OWA, but gets below error when log into Exchange 2003 OWA
404 - File or Directory not found. The resource you are looking might have been
removed, had its name changed, or is temporarily unavailable.
Exchange 2003 mailbox users CAN use Exchange 2003 OWA, but gets below error when log into Exchange 2010 OWA.
Your request couldn't be completed because no server with the correct security
settings was found to habndle the request.
Below is configured.
- Smart host is still on Exchange 2003
- Configured Exchange 2010 OWA, ECP, Exchange Active-Sync with below ONLY FOR INTERNAL URL, as our company uses owa only for Internal, not external
Internal URL: mail.company.com
Set-OABVirtualDirectory –Identity “CASserver\OAB (Default Web Site)” –InternalUrl https://mail.company.com/OAB
ctory –Identity “CASserver\EWS (Default Web Site)” –InternalUrl https://mail.company.com/EWS
- Result of Get-OWAVirtualDirectory
owa CAS server name owa Version as Exchange 2010.
- On internal DNS;
A record for legacy.company.com
A record for CAS server
A record for mail.company.com
A record for AutoDiscover.company.com
Appreciate your help