say i have a dL(test) , that Dl hold 50 users.any of the user send the email to that Dl its received all 50 users. its possible allow only few user to send the email to this DL not all user.

exchange server 2013

outloo

If you go into the properties of the DL and then to the "delivery management" tab, you should be able to add users who are allowed to send to the DL.

i have tried but still many users send the email to this group and all 50 user's receiving the email from that DL

 Who is Authorized to Send to a Distribution List

Here is a screenshot directly from one of my servers:

Hi Paul,

B0ndoo7 is pointing towards the right direction. Just note that the changes might not reflect immediatly due to AD replication time. So make the changes, wait and then check.

What do you mean by "all 50 user's receiving the email from DL", any email that is sent to a DL if one user receives it the remaining 49 is suppose to receive it as well