You may need to check your address book properties to ensure that Outlook checks your contacts when trying to resolve names. Go to Tools->Address Book, and then choose Tools->Options. Make sure that ...

If you use your email account often, you'll frequently send emails to the same contacts whether it's keeping up with meeting agendas for a specific group or looping family members in on the latest ...

I don't work with email lists much, but I've had to do some magic for my users before. I'm not sure if this is the best approach, but I think it's a way to do it. I'm going from memory here so there's ...