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
> Using outlook, when I send an email to someone, I would like the system to
> prompt me afterwords if I want to add this recipient to my contacts.
> Yahoo
> mail does this.