WindowsAdminGuru BLOG

I was receiving this error on our front-end 2003 OWA server, which is connecting to a 2007 mailbox server and has ISA: HTTP status code: [503]. Verify that the Exchange mailbox Server is working correctly. I was also receiving this error: The mailbox server does not allow "Negotiate" authentication to its [exchange] virtual directory. Exchange ActiveSync can only access the server using this authentication scheme. Users couldnt use their iPhones to connect to Exchange. Indeed Windows authentication and basic authentication were enabled. I tried everything and ended up rebuilding the Exchange virtual directory by doing: remove-owavirtualdirectory -identity "server\exchange (default website)" and recreating it: New-OWAVirtualDirectory -OwaVersion:Exchange2003or2000 -VirtualDirectoryType Mailboxes -Name "exchange"

Exchange 2007 Convert a Shared Mailbox to a Regular set-mailbox (mailboxname) -type:regular

Get the serial number of the cert via the certificates MMC. Run the following command: certutil -repairstore my “SerialNumber“

Try below to check the same - Command Line Command To Rebuild the Exchange 2007 Index From the Exchange command shell: ResetSearchIndex.ps1 [-force] -all

In order to see the top level inherited security permissions in Exchange you have to add the following reg key and restart ESM (Exchange 2003): Hkey_Current_User/ Software/ Microsoft/ Exchange/ ExAdmin Create a new Dword Value of "ShowSecurityPage" and give it a value of 1 Now restart ESM and you will see the security tab at the Exchange org levels