Remove proxy address for specific domain from Exchange Distribution groups

This script can be run after connecting to Exchange Online or on-premises environment. Replace “porkchops.com” with the suffix you want to remove 👍

Thanks to me mate Sailesh who loooves his porkchops!! 🤣🤣

# Remove proxy address for "porkchops.com" from Exchange Distribution groups

$domainname = "porkchops.com"

$groups = Get-DistributionGroup -Resultsize unlimited | where {$_.EmailAddresses -like "*$domainname*"} 

foreach ($group in $groups) {  

    $groupidentity = $group.identity
    $addresstoremove = $group.Alias+"@$domainname"

    Set-DistributionGroup $groupidentity -EmailAddresses @{remove=$addresstoremove}
}

# End