In Content Administration, you can set the following user preferences:
The original message included with a response
The default origination address to use
Default greeting, header, footer, and signature
To set user preferences
Click the Users entry under the appropriate department.
Click the Display preferences icon on the toolbar.
Make the needed changes. See About Users if you need more information.
Click OK.
Click the Save the changes made to this entry icon on the toolbar.
How do I edit user information?
How do I assign a user to an e-mail queue?