1. On the Outlook menu, click Preferences. 
  2.  Under E-mail, click Signatures Preferences. 
  3. Click Add
  4. A new signature appears under Signature name with the name Untitled. 
  5.  Double-click Untitled, and then type a name for the signature. This name will not appear in the signature in your messages; it is only for your reference. 
  6.  In the right pane, type your new Signature. (TIP Your name is automatically added in.)
  7.  Close the Signatures dialog box. 
  8.  On the Outlook menu, click Preferences. 
  9.  Under E-mail, click Signatures Preferences button. 
  10.  Click Default Signatures.
  11.  Under Account, select the account for which you want to set a default signature. 
  12.  Under Default signature, click the pop-up menu in the selected row, and then click a signature name.