To set your Communicator postal address, to be printed on envelopes sent through e-post, open the Communicator main window either by clicking the Main Menu icon on the quick launch bar or right clicking on the icon in your system tray and selecting Show Main Menu.
Once the Communicator window is displayed, select Options, then Settings
Select the Letters tab and enter your full return postal address. This can be a PO Box. Once completed, click OK to save.