Hi All,
Let me first give me the scenario -
Standalone Single EV server Windows 2008 R2 version 10.0.4 Cummulative hotfix 3. Recently upgraded from 9.0.1
Windows 2012 Domain controller - abcd.local
Exchange Environment - Mix of 2010 and 2013. In proccess of transition from 2010 to 2013.
Exchange 2010 - 2 mailbox servers and 2 cas servers - Internal OWA url abcmail.abcd.local - Has proxy
Exchange 2013 - 2 mailbox server and 2 cas servers - Internal OWA url outlook.abc.com.ab - Has Proxy
Both the OWA url are mapped with external OWA url - webmail.abc.com.ab
Only one URL is externally enabled which is webmail.abc.com.ab
Issue - EV Mail App doesnot load while using external OWA url. Gives Generic error
"App ErrorSomething went wrong and we couldn't start this app. Please try again later or contact your system administrator."
OWA for Exchange 2010 users works well and archived emails can be opened and so.
I can load the Mail App(Finally after spending 2 days with Support) using internal 2013 OWA and it works.
Here is the command I used to enable the App which I ran in 2013 mailbox server.
$Mbx = get-mailbox "xxxxx"
New-App -mailbox $Mbx.LegacyExchangeDN -Url("http://evserver.abcd.local/EnterpriseVault/OfficeMailAppManifest.aspx?LegacyMbxDn=" + $Mbx.LegacyExchangeDN)
If I run command with BaseURL then internal OWA does not work for Exchange 2013 OWA.
$Mbx = get-mailbox "xxxxx"
New-App -mailbox $Mbx.LegacyExchangeDN -Url("https://evserver.abcd.local/EnterpriseVault/OfficeMailAppManifest.aspx?LegacyMbxDn=" + $Mbx.LegacyExchangeDN + "&BaseURL=http://webmail.abc.com.ab/enterprisevault")
We have configured TMG to allow https://evserver.abcd.local/EnterpriseVault/OfficeMailAppManifest.aspx access.
Is there any tweaks if we are trying to get OWA 2010 and OWA 2013 to get working at the same time using single external webmail URL?
Is there any workaround which we can implement.. Pleae help.