voku / PHPMailer-BMH

            $dsnMsg = \imap_fetchbody($this->mailboxLink, $pos, '1');

            $dsnMsgStructure = \imap_bodystruct($this->mailboxLink, $pos, '1');

            if ($dsnMsgStructure->encoding == 4) {

                $dsnMsg = \quoted_printable_decode($dsnMsg);

            } elseif ($dsnMsgStructure->encoding == 3) {

                $dsnMsg = \base64_decode($dsnMsg, true);

            }

            // second part of DSN (Delivery Status Notification), delivery-status

            $dsnReport = \imap_fetchbody($this->mailboxLink, $pos, '2');

                case 2: // Content-type = message

                    $body = \imap_body($this->mailboxLink, $pos);

                    if ($structure->encoding == 4) {

                        $body = \quoted_printable_decode($body);

                    } elseif ($structure->encoding == 3) {

                        $body = \base64_decode($body, true);

                    }

                    $body = \substr($body, 0, 1000);

                    $result = bmhBodyRules($body, $structure, $this->debugBodyRule);