好的，那么你可以试试这个。你可以设置标题，只是不需要参数。WordPress使用“挂钩”，您需要的挂钩是“wp\\u mail\\u from”和“wp\\u mail\\u from\\u name”挂钩。

以下是您可以添加到主题函数的挂钩。php文件，用于在使用wp\\u mail（）时将“发件人：”标题修改为电子邮件地址Greg j：

add_filter(\'wp_mail_from\',\'yoursite_wp_mail_from\');
function yoursite_wp_mail_from($content_type) {
  return \'[email protected]\';
}
add_filter(\'wp_mail_from_name\',\'yoursite_wp_mail_from_name\');
function yoursite_wp_mail_from_name($name) {
  return \'Greg j\';
}

WordPress不会查看您的管理电子邮件，每次都会使用虚构的地址wp_mail() 在没有From 标题。

// From email and name
// If we don\'t have a name from the input headers
if ( !isset( $from_name ) )
    $from_name = \'WordPress\';

/* If we don\'t have an email from the input headers default to wordpress@$sitename
 * Some hosts will block outgoing mail from this address if it doesn\'t exist but
 * there\'s no easy alternative. Defaulting to admin_email might appear to be another
 * option but some hosts may refuse to relay mail from an unknown domain. See
 * http://trac.wordpress.org/ticket/5007.
 */

if ( !isset( $from_email ) ) {
    // Get the site domain and get rid of www.
    $sitename = strtolower( $_SERVER[\'SERVER_NAME\'] );
    if ( substr( $sitename, 0, 4 ) == \'www.\' ) {
        $sitename = substr( $sitename, 4 );
    }

    $from_email = \'wordpress@\' . $sitename;
}

在某些情况下，您必须过滤它：当您的域名是www.tld, WordPress将剥离www. 并使用电子邮件地址wordpress@tld.