A method for adding a user's e-mail address to the address book of a networked document output device includes receiving an electronic message from a user, automatically extracting the sender's electronic address, and automatically adding the electronic address to an address book used by the document output device. A networked document output device includes memory for storing document data, means for sending document to users on a network, means for receiving electronic communications from a networked user, and a controller for practicing a method that includes extracting an electronic address from a received e-mail, and adding the user's address to a local address book.