Exchange 2010 and Set-ActiveSyncVirtualDirectory Identity

I don’t really know why I put this blog up, but generally I write stuff here after I muddle through some ridiculous problem that may have ended up being easily resolved, but whose solution was hard to find. That’s definitely the case with this post. Currently I’m in the middle of moving my company’s email from Exchange 2003 to Exchange 2010. Microsoft has provided some pretty good documentation on how to do this, but they do assume a certain level of familiarity with the product. For example, I probably spent 30 minutes trying to run Exchange cmdlets in Powershell before I realized there’s a special shell just for Exchange, the Exchange Management Shell.

Anyway, I’m trying to setup a Client Access Server to replace our Exchange 2003 Outlook Web Access (webmail) system. Again, Microsoft’s walkthrough is pretty good, and everything seemed to be working until I got to section 4c of their instructions:

Exchange ActiveSync: Set-ActiveSyncVirtualDirectory -Identity \Microsoft-Server-ActiveSync -ExternalURL https://mail.contoso.com

For the other examples they provided, I had been replacing with the internal name of my new CAS, “EXCH2010FE1,” so that’s what I attempted to do here as well, however it threw this error:

[PS] C:\Windows\system32>Set-ActiveSyncVirtualDirectory -Identity EXCH2010FE1\Microsoft-Server-ActiveSync -ExternalURL https://webmail.example.com
The operation couldn’t be performed because object
‘EXCH2010FE1\Microsoft-Server-ActiveSync’ couldn’t be found on ‘activedir.example.com’.
+ CategoryInfo : NotSpecified: (0:Int32) [Set-ActiveSyncVirtualDirectory], ManagementObjectNotFoundException
+ FullyQualifiedErrorId : B33731BE,Microsoft.Exchange.Management.SystemConfigurationTasks. SetMobileSyncVirtualDirectory

[PS] C:\Windows\system32>

I racked my brain on this for a while. I discovered the Get-ActiveSyncVirtualDirectory command, hoping it would magically solve the problem (telling me what the “Identity” was), but it didn’t – at least not at first:

[PS] C:\Windows\system32>Get-ActiveSyncVirtualDirectory -server exch2010fe1

Name Server InternalUrl
—- —— ———–
Microsoft-Server-ActiveSync (Default… EXCH2010FE1 https://exch2010fe1.example.com/Microsoft-Se…

[PS] C:\Windows\system32>

It was showing me the server, but not the Identity, which is what I wanted. Having never used Powershell before, I figured there had to be a way to get that property out of the command, but I had no idea what it was. Some more Googling finally helped me resolve it:

[PS] C:\Windows\system32>Get-ActiveSyncVirtualDirectory -server exch2010fe1 | Select-Object Identity

Identity
——–
EXCH2010FE1\Microsoft-Server-ActiveSync (Default Web Site)

[PS] C:\Windows\system32>

Once I supplied “EXCH2010FE1\Microsoft-Server-ActiveSync (Default Web Site)” for the Identity parameter the command completed correctly. I also tried piping the Get-ActiveSyncVirtualDirectory command directly to Set-ActiveSyncVirtualDirectory, like this:

[PS] C:\Windows\system32>Get-ActiveSyncVirtualDirectory -Server exch2010fe1 | Set-ActiveSyncVirtualDirectory -ExternalURL https://webmail.example.com

This appeared to execute successfully, but I don’t know if it actually did what I intended, so I stuck with specifying the identity manually.

The Exchange 2010 CAS is properly redirecting users to legacy.example.com, but ActiveSync isn’t working (I’m testing with my iPhone), so I guess the problem I was having above wasn’t the source of all my ills, sadly. The battle continues…