Test-OutlookConnectivity cmdlet fails with Sequence contains no elements error in Exchange Server
Original KB number: 3186849
When you run the Test-OutlookConnectivity
test in an Exchange Server 2016 or 2013 environment, you receive the following warning:
WARNING: An unexpected error has occurred and a Watson dump is being generated:
Sequence contains no elements
+ CategoryInfo : NotSpecified: (:) [Test-OutlookConnectivity], InvalidOperationException
+ FullyQualifiedErrorId : System.InvalidOperationException,Microsoft.Exchange.Management.Tasks.TestOutlookConnectivity
+ PSComputerName : toys-e15-mbx1.tailspintoys.com
This issue occurs because the database value that's specified in the ProbeIdentity parameter is case-sensitive.
To resolve this issue, determine the database name value by running the Get-Mailbox
cmdlet, as follows:
$db = (Get-Mailbox <Alias>).Database
Then, run the Test-OutlookConnecivity
cmdlet by using the database variable from the preceding Get-Mailbox
cmdlet:
Test-OutlookConnectivity OutlookRpcDeepTestprobe\$db -RunFromServerId <ServerName> -MailboxId <Alias>
For more information about this PowerShell cmdlet, see Test-OutlookConnectivity.