How to edit email account preferences when in the Preferences window, there is nothing for email in the categories list

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I have adobe Acrobat 9 Pro.
I would like to edit my email preferences so that when I create an email with the PDF as an attachment the name of the file will automatically also be the subject line of the email.
according to the help instructions, I should find this by: " open the Preferences dialog box, and under Categories, select Email Accounts."
In my version, "Email Accounts" does not appear in the categories list.
Where do I go to edit email preferences?
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