This policy setting controls whether Outlook 2007 users can define and use e-mail signatures.
If you enable this policy setting, Outlook 2007 users cannot append signatures to new messages, replies, or forwarded messages automatically. It also prevents users from accessing the "E-mail Signature" tab of the "Signatures and Stationary" dialog box to add signatures manually.
If you disable or do not configure this policy setting, Outlook 2007 users can create and use signatures in e-mail messages. Users can add signatures to messages manually, and can also configure Outlook to automatically append signatures to new messages, to replies and forwards, or to all three. Signatures typically include details such as the user's name, title, phone numbers, and office location.