To hide recipients, use the BCC field. To personalize messages, use a mail merge (which cannot use DL's, BTW).
Signature
Russ Valentine [MVP-Outlook]
> How do I send an e-mail using a distribution list, but set it up so that > the [quoted text clipped - 3 lines] > basis, > even though they are sent as a mass e-mailing using a distribution list.