I presume you mean the name of the account from which the message will be
sent rather than the signature at the bottom of the message?
You will need to configure the account from which you want the messages to
be sent in your copy of Outlook.
For individual messages you can choose from the installed accounts from the
Account button under the send button. For mail merge you will need to set
the required account as the default account for the duration of the merge,
or create a macro to intercept the output and direct to the required
account, or use a third party add-in such as MAPILab's Mailmerge toolkit
add-in for Outlook
http://www.mapilab.com/outlook/mail_merge/ .
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Graham Mayor - Word MVP
My web site
www.gmayor.com
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