Office doesn't support that. Some third-party mass mail tools do. See http://www.slipstick.com/addins/mail.htm#massmail

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Sue Mosher, Outlook MVP
Author of
Microsoft Outlook Programming - Jumpstart for
Administrators, Power Users, and Developers
http://www.outlookcode.com/jumpstart.aspx
>I am trying to create some templates for Outlook and will be using Mail
> Merge. In the Subject Line, I need to 2 fields from my worksheet. I cannot
> figure out how to do this.