Problem with legacy fallback

Hi there!

There is a glitch in your function “wp_mail_native”

You should return the value that is returned by the required file.

So to be more specific:

WRONG Code!

static function wp_mail_native( $to, $subject, $message, $headers = '', $attachments = array() ) {
  ...
  require plugin_dir_path( __FILE__ ) . '/legacy/function.wp_mail.php';
}

Correct Code

static function wp_mail_native( $to, $subject, $message, $headers = '', $attachments = array() ) {
  ...
  $status = require plugin_dir_path( __FILE__ ) . '/legacy/function.wp_mail.php';
  return $status;
}

Otherwise we will always get NULL as return value for wp_mail if the native fallback is used!

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