Delete multiple members of distribution group using CSV thru Exchange Management Shell On Premise

Question

I received a request from our employees to delete all the members of this particular distribution group within our organization, and upon checking this DL has a total of 7,000 members.

Is there any powershell script I can use to delete just the members of this DL?

Thank you,

AD

Answer 1

You may try the following PS script

$memberlist = Get-DistributionGroupMember -Identity <dl name>
$memberlist | % {Remove-DistributionGroupMember -Identity <dl name> -Member $_.Name -Confirm:$false} 

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Answer 2

Try this:

$DLName = "MyDL"
Get-DistributionGroupMember -Identity $DLName> -Resultsize Unlimited |
    ForEach-Object{
        Try{
            Get-ADUser $_.Identity -ErrorAction Stop    # if there's no AD user don't try to remove it
            $_ | Remove-DistributionGroupMember -Identity $DLName -Member $_.Identity -Confirm:$false
        }
        Catch{
            # log some information?
        }
    }

NOTE: I haven't tried running this code!!!!!

Answer 3

To delete all members of a DL, just use this:

update-distributiongroupmember "DL Email address" -members $null

This will remove all members of the list. To confirm the deletion, use this command:

Get-DistributionGroupMember "DL Email address").member.count

Or use this: (Get-ADGroup "DL Email address" -Properties *). Member. Count