Find all the Distribution Groups a user is a member of with PowerShell in Office 365

Whether you want to do some reports or debugging, you might need to quickly find out what Distribution Groups a user is a member of! You could go in the user’s profile, see all of the groups , find out which ones are Security, which ones are Distribution Groups.. or you could do an easy PowerShell cmdlet!

Since we will be playing with Exchange Online, you first need to connect to Exchange!

$cred = Get-Credential

$Session = New-PSSession -ConfigurationName Microsoft.Exchange -ConnectionUri https://outlook.office365.com/powershell-liveid/ -Credential $cred -Authentication Basic -AllowRedirection

Import-PSSession $Session

 

Next up, I will save the Username of the person I am looking for in a variable called Username

$Username = "Jeff.Collins@globomantics.org"

And then, I will use this cmdlet which will get all the Distribution Groups in my tenant, and then find the ones where my username is in the members! (This assumes your e-mail address is the same as the username! If that’s not the case, you can simply put the e-mail in the UserName variable and it will work!)

$DistributionGroups= Get-DistributionGroup | where { (Get-DistributionGroupMember $_.Name | foreach {$_.PrimarySmtpAddress}) -contains "$Username"}

You can now either Display it , or do another action such as removing the user from all of them!

That’s it! As you see this is really an quick and easy PowerShell snippet!

 

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by Vlad Catrinescu via Absolute SharePoint Blog by Vlad Catrinescu