exchange delete skype for business contacts

We use a mailbox search query to iterate over all mailbox items that contains the unique string that each duplicate contains. Get-Mailbox LyncContactRemoval | Add-MailboxPermission -User -AccessRights FullAccess -InheritanceType All New-Mailbox -Name LyncContactRemoval -Shared Be sure to grant yourself access to the mailbox so you can review outputs. I’d recommend using a shared mailbox so it doesn’t consume a license. Next create a mailbox to store the log output. $session = New-PSSession -ConfigurationName Microsoft.Exchange -ConnectionUri '' -Credential $cred -Authentication Basic -AllowRedirection Import-PSSession $session -AllowClobber Get yourself connected to Exchange Online via PowerShell. To do this you’ll need the Exchange Online PowerShell module installed and an account with the global admin role.įirst up, the basics. I’ve included a full copy of the script at the end of this post if you just want to steal the whole thing. So I figured out my own way, using PowerShell, which I’ll spell out below.

I needed to solve this problem recently, and found plenty of suggested fixes but they were either way too manual (fine for a few duplicates but not thousands) or they just didn’t work at all. The trouble with removing these if you’re on Exchange Online is the contacts have special permissions and can’t be deleted by the end user. The underlying cause of these duplicates being created has long been fixed via CUs, but the contacts remain.

If you’ve been running Lync for quite a while, these duplicates may run north of 10,000 objects, which will start to mess with your Outlook performance and do horrible things to your mobile phone address book. If you’ve been using Lync (now Skype for Business) for a while, you’ll likely find that you have a number of duplicate contacts in your mailbox, due to a legacy behavior of the client auto-creating contacts everytime the client version changed.

Exchange delete skype for business contacts