When I receive a message and hit reply and the friendly name contains a comma. like this: Lastname, Firstname user@domain.com the domino server sends my reply to both Lastname and user@domain.com (if Lastname is unique in $users). To my question, can I do anything to prevent this? I only want domino to send mail if the adress is the right one (No lookup) ex. User/acme/US. I want the client to do the lookup not the server.