I am running Exchange 2007 SP3 and need to restrict several DL so that only authorized users can send internal email to them.
I have created a Allowed-Senders DL, pupulated with allowed users to send. I then added this Allowed-Senders DL under "Mail Flow Settings" > " Message Delivery Restrictions"
If i tried to send a message from any regular user to a restricted DL, i get a "not authoirzed" error which is expected, but when i send an email from authorized users, I don't get the email nor an error.
Any thoughts? Is it that i must add users individually?