Filter the view and in the Categories box, type Cat1 OR Cat2 OR Cat3 to selecte members from multiple categories. You can then select all the filtered contacts, and choose Actions | New Message or, better, Tools | Mail Merge.

--
Sue Mosher, Outlook MVP
Author of Configuring Microsoft Outlook 2003
http://www.turtleflock.com/olconfig/index.htm
and Microsoft Outlook Programming - Jumpstart for
Administrators, Power Users, and Developers
http://www.outlookcode.com/jumpstart.aspx

"RDeer" wrote in message ...
Have hundreds of contacts in contact list with multiple categories. Some
people are in several of the categories. Would like to send email to
multiple categories without sending duplicate emails to those certain people.
I know how to send an email to ONE category only, but not to several at a
time.