See http://www.slipstick.com/contacts/addauto.htm for various ways to save
senders or recipients as new contacts automatically, depending on your
version and configuration of Outlook.

Signature
Sue Mosher, Outlook MVP
Author of
Microsoft Outlook Programming - Jumpstart for
Administrators, Power Users, and Developers
http://www.outlookcode.com/jumpstart.aspx
> Ian I configure Outlook to automatically add email addresses of people I
> reply to? I know that can be done in Outlook Express. I get emails as part
> of
> a large group, and I'd like to add them all to my address book without
> doing
> it one by one (I know about the Reply All option, too).