Tell the class or php library to work with email raw

Good afternoon, we are looking for a class that can collect raw from various parts of the mail for example

$message->setTo($to); $message->setFrom($from); $message->attach($filename); $raw = $message->getRaw(); 

and on the contrary, from raw extract parameters

 $message->setRaw($raw); $to = $message->getTo(); $from = $message->getFrom(); $attachments = $message->getAttach();