Exchange | Alex Ø. T. Hansen

Alex Ø. T. Hansen

19/09/2018

Exchange – Add nested group recipients to parent resources

Do you have nested groups within Exchange resources such as distribution groups, shared mailboxes, rooms or equipment?

If you have, you have come to the right place. I have created a script that extracts all nested group members of a resource, and add it directly to the resource instead.

The script works in both on-premise and Exchange Online.

Before you can run the script, you need to have access to the following:

Access to on-premise and/or Office 365 environment as a administrator.
Have the AzureAD and Active Directory PowerShell module installed.

Alex Ø. T. Hansen

18/01/2016

Exchange – Event ID 106 – Performance Counter Updating Error

Here’s just a quick post on removing the Event ID error 106 from your application logs on Exchange Servers.

You will properly at some point see the following in your event log:

ID: 106
Level: Error
Source: MSExchange Common
Machine: -
Message: Performance counter updating error. Counter name is Per-Tenant KeyToRemoveBudgets Cache Size, category name is MSExchangeRemotePowershell. Optional code: 3. Exception: The exception thrown is: System.InvalidOperationException: The requested Performance Counter is not a custom counter, it has to be initialized as ReadOnly.\

ID: 106

Level: Error

Source: MSExchange Common

Machine: -

Message: Performance counter updating error. Counter name is Per-Tenant KeyToRemoveBudgets Cache Size, category name is MSExchangeRemotePowershell. Optional code: 3. Exception: The exception thrown is: System.InvalidOperationException: The requested Performance Counter is not a custom counter, it has to be initialized as ReadOnly.\

This is caused because the performance counters cannot be loaded properly.

To correct this, do the following.

Alex Ø. T. Hansen

10/01/2016

Disabled/Disconnected mailboxes with PowerShell

Have you ever wanted to get all disconnected mailboxes from Exchange?

Here is a “short” PowerShell syntax, for exactly that:

Get-ExchangeServer | Where-Object {$_.IsMailboxServer -eq $true} | ForEach-Object { Get-MailboxStatistics -warningAction silentlyContinue -Server $_.Name | Where-Object {$_.DisconnectDate -ne $null}}

1	Get-ExchangeServer \| Where-Object {$_.IsMailboxServer -eq $true} \| ForEach-Object { Get-MailboxStatistics -warningAction silentlyContinue -Server $_.Name \| Where-Object {$_.DisconnectDate -ne $null}}

It checks only the mailbox servers in your Exchange farm, and finds the disconnected/disabled mailboxes.