This brings up an editor with the text of the email source in it, where you can view the coding and edit it for your own use.
Nke a na-ewetara onye nchịkọta akụkọ gị ihe ederede nke ebe email ahụ na ya, ebe ị nwere ike ịlele koodu ahụ ma dezie ya maka ojiji nke gị.