In outlook, when you start typing a person's name or email address into the To: line, it's smart enough to offer matches based on character matches PLUS how often you've written to them. So if you write to Sara a lot, and Sam very infrequently, Sara would be presented in the match list above Sam. It's pretty handy. Zimbra Desktop seems to use the simple character match. Is there any way to change this behavior? If not, can I make a feature request?