//change WordPress default mail_from information   function new_from_name ( $email ) { $wp_from_name = get_option ( 'blogname' ) ; return $wp_from_name ; }   function new_from_email ( $email ) { $wp_from_email = get_option ( 'admin_email' ) ; return $wp_from_email ; }   add_filter ( 'wp_mail_from_name' , 'new_from_name' ) ; add_filter ( 'wp_mail_from' , 'new_from_email' ) ; 原文：http://www.wpdaxue.com/change-wordpress-mail-from-info.html