That is called a blind carbon copy - bcc
Outlook has three options-
To:
Cc:
Bc:

Visit the Outlook forums for more assistance.

You can send it if you have a mail server that has a
mailing list and one mail address e. g.  You would type  
OneStar@Lodestarpublications.net in the TO: of OE or
Outlook (OE works better in my opinion) and this address
would have a list assigned to it and only the one
recipient would see the mail as This >> OneStar News in
the subject and The From would be What ever you choose.
The BCC: works also but you would be there a long time.If
you would like to see how it works Go to
www.lodestarpublications.net and sign up for the
newsletter. You can remove yourself automatically so dont
worry. If you want to get off you can... just as easy as
you got on.
Good luck
Happy Mailing!
Joe

a long list of all other recepients.