Put the addresses in the BCC (Blind Carbon Copy) field of the mail header.
If that field doesn't show while you're composing a E-mail go to the View
menu and select 'BCC Field'.
Alternately you could use an application like the ones listed here:
http://www.slipstick.com/addins/mail.htm#massmail

Signature
Russ Valentine
[MVP-Outlook]
>I want to create a dl but when i send an e-mail i would like the recipients
> field to be clear. So that people recieve the e-mail but don't know who
> else
> has been sent the same. Their own name does not have to be listed either.
> Can this be done?
> Thanks in advance