Microsoft
Thank you for Exchange mail system!
There is Exchange 2010 SP1 R6 distribution group A -> Properties - Mail Flow Settings - Message Delivery Restrictions - Add.
I can only add MAIL ENABLED security groups -identity B. When i add B and then disable exchange properties of group B, group B members still can send emails to group A. But in future, when i need to change group A permission list, i received error: Couldn't find object B ... (Because i disabled exchange properties of group B)
So, can you please change this, that we can add not only mail enabled groups, but also ordinary Active Directory Security Groups?!!
Otherwise, i need to change security groups as mail enabled groups :(