Whenever you send emails from SmarterMail (webmail), your emails go out with the from address as: Untitled. This happens because you need to update your Display Name setting.
Log into SmarterMail for the account in question. Then click "My Settings" and select the "Mailbox" tab. You should see the Display Name option set to: Untitled. Simply change the "Untitled" text to whatever you would like. Your outgoing emails will now use the new display name you have entered. Make sure to Save your changes.