List all distributions lists and members via PowerShell

A quick script to run against your Exchange server (on-premises, or O365) to list all distribution groups along with their constituent members:

$Groups| foreach{
$Report=Get-distributionGroupMember -identity $_.identity| select @{Name=”Distribution Group”; Expression={[String]::join(“;”, $GroupName)}}, Name, PrimarySmtpAddress
$Reports| out-file “c:\temp\Groups.txt”

Save the code as a .ps1 file and then run as normal. Thanks to Evan Liu for the info!

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