Deny certain users send ability to a all users DL

[TopDawg]

I have been asked to deny certain users the ability to send an email to my all mail users group. Any idea on how to do this? I am pretty new to Exchange.

Thanks in advance.

 

[TopDawg]

I think I found a solution. In AD under the Exchange General tab, there is a section ( message restrictions only from)
You can then choose to add the who ever you want to be able to send to this DL.