PHP一个发送邮件的类

nbsp;          $this->log_write("Error: Cannot resolve MX \"".$domain."\"\n");


            return FALSE;


        }


        foreach ($MXHOSTS as $host) {


            $this->log_write("Trying to ".$host.":".$this->smtp_port."\n");


            $this->sock = @fsockopen($host, $this->smtp_port, $errno, $errstr, $this->time_out);


            if (!($this->sock && $this->smtp_ok())) {


                $this->log_write("Warning: Cannot connect to mx host ".$host."\n");


                $this->log_write("Error: ".$errstr." (".$errno.")\n");


                continue;


            }


            $this->log_write("Connected to mx host ".$host."\n");


            return TRUE;


        }


        $this->log_write("Error: Cannot connect to any mx hosts (".implode(", ", $MXHOSTS).")\n");


        return FALSE;


    }


     


    function smtp_message($header, $body)


    {


        fputs($this->sock, $header."\r\n".$body);


        $this->smtp_debug("> ".str_replace("\r\n", "\n"."> ", $header."\n> ".$body."\n> "));


     


        return TRUE;


    }


     


    function smtp_eom()


    {


        fputs($this->sock, "\r\n.\r\n");


        $this->smtp_debug(". [EOM]\n");


     


        return $this->smtp_ok();


    }


     


    function smtp_ok()


    {