Regex in messaging_phpmailer is incorrectly formatting the 'From' headers

My from line contains quotes and a backslash in the format "[site-name]/"". I was able to correct the problem by hard coding the value in line 208. I haven't had a chance to try to correct the regex.

Line 206-208:

preg_match('/["\']?(.*)["\']? <(.*)>/', $message['headers']['From'], $matches);
  if (!empty($matches[1])) {
    $from['name'] = $matches[1];