By pressing the Accounts button. Instructions depend on your version of
Outlook and accounts being used.

Signature
Robert Sparnaaij [MVP-Outlook]
Coauthor, Configuring Microsoft Outlook 2003
http://www.howto-outlook.com/
Outlook FAQ, HowTo, Downloads, Add-Ins and more
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> How do I create a sender list for multile e-mail accounts? Also I do
> specify
> which account I want to send the e-mail from?