It depends on your Outlook version and the format of these addresses,
neither of which you specified.
Read this:
http://www.outlook-tips.net/archives/2004/20041105.htm

A DL with "hundreds of addresses" seems a bad idea. Lists of this size
rarely work and are nearly impossible to maintain.
--
Russ Valentine
[MVP-Outlook]
"Mike" wrote in message
ups.com...
I want to make an email contact distribution list of hundreds of email
addresses that come to me in an email .How can I do that without taking
each individual email address and assigning it to a distribution list ?

Thanks,

Mike