Some versions already do this.
We have no idea what version you are using.
Current versions require you to run code or a third party add-in.
http://www.outlookcode.com/d/code/autoaddrecip.htm
http://www.slipstick.com/contacts/addauto.htm

--
Russ Valentine
[MVP-Outlook]
"Trui" wrote in message
...
when I send a message I would like outlook to automatically save the
adress
in the adressbook.

any suggestions?

Thankx