Email – Send As Distribution Group Address

From http://www.exchangefaq.org/faq/Exchange-2003/Transport/q/How-do-you-restrict-Distribution-Lists?/qid/1084

To set restrictions on a distribution list

1. Click Start, point to All Programs, point to Microsoft Exchange, and then click Active Directory Users and Computers.
2. Expand your organizational unit container, and double-click Users.
3. Right-click the distribution list for which you want to restrict submissions, and then click Properties.
4. Click the Exchange General tab.

5. Under Message Restrictions, under Accept messages, select one of the following options:

   • Click From everyone to allow anyone to send to this distribution list. This includes anonymous users from the Internet.
   • Click From authenticated users only to allow only authenticated users to send mail to this distribution list.
   • Click Only from to specify a select set of users or groups that can send to this group and then click Add to specify the users or groups that you want to permit to send mail to this distribution list.
   • Click From everyone except to allow everyone but a select set of users or groups to send to this distribution group and then click Add to specify the list of users or groups that you want to restrict from sending to this distribution list.

I found a way to do this, which wasn't obvious to me since I was only using the Exchange Admin Center tool.

After creating the group in the above mentioned tool I tehn went into Active Directory Users and Groups and looked at the group. The person I had added as the owner in the Exchnage too (but not as a member) was listed as a member here. I removed them from the Member list but kept them as the owner. Now emails to this group do not go to the group owner.