maintaining list

Hi.

I am interested in learning how to have a recipe which will extract the
person's address who is emailing me, and put it into a file. Basically I
just want to keep a neat list of all the people that have emailed me,
without duplicates obviously.

Any suggestions?


Marcus Holmes                           mholmes(_at_)world(_dot_)std(_dot_)com  
                
Software Tool & Die                     http://www.nitrogen.org 

Contact me about info on email addresses @prodigy.nu and @nitrogen.org for
$5/month!