You can try this if your version supports it:
http://www.outlook-tips.net/archives/2004/20041105.htm
We'd have no idea. You never mentioned your version.
--
Russ Valentine
[MVP-Outlook]
"Mike" wrote in message
...
Someone sends me an email with a large distribution list as the addressee.
I
want to use that same DL, how do I copy/insert/add to Outlook so that I
can
use it as my own for future addressing?

Mike