adding user into allow messages for sending email to distribution group - delivery management

Question

Hi all,

I want to add a user into the delivery management part of a distribution group so they can send emails to this group - how do I do this via powershell as doing it using the portal I get a error stating "There are multiple recipients matching the identity "user". Please specify a unique value."

and after removing this user I get the same error even though the user isnt there

Answer 1

Try this after connecting to Exchange Online (unless you're doing this in an on-site AD organization):

$DL = "group-identity"
$U = "******@contoso.com"
Set-DistributionGroup -Identity $DL -AcceptMessagesOnlyFrom @{Add=$U}