/**
  * Save all attachments of a given mail
  *
  * @param \Shockwavemk\Mail\Base\Model\Mail $mail
  * @return $this
  */
 public function saveAttachments($mail)
 {
     /** @var \Shockwavemk\Mail\Base\Model\Mail\Attachment[] $attachments */
     $attachments = $mail->getAttachments();
     foreach ($attachments as $attachment) {
         $this->saveAttachment($attachment);
     }
     return $this;
 }