We recently had our Revenue Cycle Model set up and activated. For all eblasts, I'm adding in a filter to not send to anyone marked as 'Not a Lead', however, all our internal employees and partners are marked as Not a Lead also. I set up a few static seed lists to be sure that our internal employees receive all outgoing communications. However, I sent an email this afternoon and included the seed list and none of our employees received the email. Is there something special i should be doing when I set up the seed lists? Do I need to mark them special or how do they work exactly?