To text box

[Jeff]

When typing into the "to" textbox, outlook 2003 does an autofill with a dropdown list.

Is it possible to have only contacts show up there instead of who ever an email was sent to in the past

 

[Russ Valentine [MVP-Outlook]]

No. For that you would use autoresolution (Automatic Name checking), not
autocompletion (Suggest Names).

If you enter part of a name or a nickname then tab out of the field (or hit
Alt-K [Check Names]), Outlook will attempt to resolve the name against your
address book. If it can't it'll red underline it and you can right click on
the name to manually resolve it. Outlook will save the resolution for future
use.