Exchange 2007 - Block mail by group
We have recently upgraded from Exchange 2003 to 2007.
We have distribution lists (security groups) set up for each year group in the school. We allow staff to send mail to year groups, but we don't allow students to send mail to the whole year group for obvious reasons.
This worked fine in Exchange 2003, and the mailboxes have moved over with the correct settings as shown in this screen shot of the 'Mail Delivery Restrictions' box.
However, I've tried to do the same with the newly created year 7 group, and the dialogue box will not let me add in the staff group (or any group) as an allowed group. All I see is a list of individual users.
Anyone know what's going on?