I've created a Distribution List in the Comcast email system. I've created two forwarders (Exchange calls these Contacts, but oh well) and pointed them to external email addresses. However, I've not been able to find a way to add these forwarders to the distribution list. I also haven't found a way to add at internal user to that list. Can this be done, or is there some other mechanism to add external email addresses to a distribution list with this product?