class smtp 
{ 
/* Public Variables */ 
var $smtp_port; 
var $time_out; 
var $host_name; 
var $log_file; 
var $relay_host; 
var $debug; 
var $auth; 
var $user; 
var $pass; 
/* Private Variables */ 
var $sock; 
/* Constractor */ 
function smtp($relay_host = "", $smtp_port = 25,$auth = false,$user,$pass) 
{ 
$this->debug = FALSE; 
$this->smtp_port = $smtp_port; 
$this->relay_host = $relay_host; 
$this->time_out = 30; //is used in fsockopen() 
# 
$this->auth = $auth;//auth 
$this->user = $user; 
$this->pass = $pass; 
# 
$this->host_name = "localhost"; //is used in HELO command 
$this->log_file = ""; 
$this->sock = FALSE; 
} 
/* Main Function */ 
function sendmail($to, $from, $subject = "", $body = "", $mailtype, $cc = "", $bcc = "", $additional_headers = "") 
{ 
$mail_from = $this->get_address($this->strip_comment($from)); 
$body = ereg_replace("(^|(\r\n))(\\.)", "\\1.\\3", $body); 
$header .= "MIME-Version:1.0\r\n"; 
if($mailtype=="HTML"){ 
$header .= "Content-Type:text/html\r\n"; 
} 
$header .= "To: ".$to."\r\n"; 
if ($cc != "") { 
$header .= "Cc: ".$cc."\r\n"; 
} 
$header .= "From: $from<".$from.">;\r\n"; 
$header .= "Subject: ".$subject."\r\n"; 
$header .= $additional_headers; 
$header .= "Date: ".date("r")."\r\n"; 
$header .= "X-Mailer:By Redhat (PHP/".phpversion().")\r\n"; 
list($msec, $sec) = explode(" ", microtime()); 
$header .= "Message-ID: <".date("YmdHis", $sec).".".($msec*1000000).".".$mail_from.">;\r\n"; 
$TO = explode(",", $this->strip_comment($to)); 
if ($cc != "") { 
$TO = array_merge($TO, explode(",", $this->strip_comment($cc))); 
} 
if ($bcc != "") { 
$TO = array_merge($TO, explode(",", $this->strip_comment($bcc))); 
} 
$sent = TRUE; 
foreach ($TO as $rcpt_to) { 
$rcpt_to = $this->get_address($rcpt_to); 
if (!$this->smtp_sockopen($rcpt_to)) { 
$this->log_write("Error: Cannot send email to ".$rcpt_to."\n"); 
$sent = FALSE; 
continue; 
} 
if ($this->smtp_send($this->host_name, $mail_from, $rcpt_to, $header, $body)) { 
$this->log_write("E-mail has been sent to <".$rcpt_to.">;\n"); 
} else { 
$this->log_write("Error: Cannot send email to <".$rcpt_to.">;\n"); 
$sent = FALSE; 
} 
fclose($this->sock); 
$this->log_write("Disconnected from remote host\n"); 
} 
return $sent; 
} 
/* Private Functions */ 
function smtp_send($helo, $from, $to, $header, $body = "") 
{ 
if (!$this->smtp_putcmd("HELO", $helo)) { 
return $this->smtp_error("sending HELO command"); 
} 
#auth 
if($this->auth){ 
if (!$this->smtp_putcmd("AUTH LOGIN", base64_encode($this->user))) { 
return $this->smtp_error("sending HELO command"); 
} 
if (!$this->smtp_putcmd("", base64_encode($this->pass))) { 
return $this->smtp_error("sending HELO command"); 
} 
} 
# 
if (!$this->smtp_putcmd("MAIL", "FROM:<".$from.">;")) { 
return $this->smtp_error("sending MAIL FROM command"); 
} 
if (!$this->smtp_putcmd("RCPT", "TO:<".$to.">;")) { 
return $this->smtp_error("sending RCPT TO command"); 
} 
if (!$this->smtp_putcmd("DATA")) { 
return $this->smtp_error("sending DATA command"); 
} 
if (!$this->smtp_message($header, $body)) { 
return $this->smtp_error("sending message"); 
} 
if (!$this->smtp_eom()) { 
return $this->smtp_error("sending ;;.;; [EOM]"); 
} 
if (!$this->smtp_putcmd("QUIT")) { 
return $this->smtp_error("sending QUIT command"); 
} 
return TRUE; 
} 
function smtp_sockopen($address) 
{ 
if ($this->relay_host == "") { 
return $this->smtp_sockopen_mx($address); 
} else { 
return $this->smtp_sockopen_relay(); 
} 
} 
function smtp_sockopen_relay() 
{ 
$this->log_write("Trying to ".$this->relay_host.":".$this->smtp_port."\n"); 
$this->sock = @fsockopen($this->relay_host, $this->smtp_port, $errno, $errstr, $this->time_out); 
if (!($this->sock && $this->smtp_ok())) { 
$this->log_write("Error: Cannot connenct to relay host ".$this->relay_host."\n"); 
$this->log_write("Error: ".$errstr." (".$errno.")\n"); 
return FALSE; 
} 
$this->log_write("Connected to relay host ".$this->relay_host."\n"); 
return TRUE; 
} 
function smtp_sockopen_mx($address) 
{ 
$domain = ereg_replace("^.+@([^@]+)$", "\\1", $address); 
if (!@getmxrr($domain, $MXHOSTS)) { 
$this->log_write("Error: Cannot resolve MX \"".$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() 
{ 
$response = str_replace("\r\n", "", fgets($this->sock, 512)); 
$this->smtp_debug($response."\n"); 
if (!ereg("^[23]", $response)) { 
fputs($this->sock, "QUIT\r\n"); 
fgets($this->sock, 512); 
$this->log_write("Error: Remote host returned \"".$response."\"\n"); 
return FALSE; 
} 
return TRUE; 
} 
function smtp_putcmd($cmd, $arg = "") 
{ 
if ($arg != "") { 
if($cmd=="") $cmd = $arg; 
else $cmd = $cmd." ".$arg; 
} 
fputs($this->sock, $cmd."\r\n"); 
$this->smtp_debug(">; ".$cmd."\n"); 
return $this->smtp_ok(); 
} 
function smtp_error($string) 
{ 
$this->log_write("Error: Error occurred while ".$string.".\n"); 
return FALSE; 
} 
function log_write($message) 
{ 
$this->smtp_debug($message); 
if ($this->log_file == "") { 
return TRUE; 
} 
$message = date("M d H:i:s ").get_current_user()."[".getmypid()."]: ".$message; 
if (!@file_exists($this->log_file) || !($fp = @fopen($this->log_file, "a"))) { 
$this->smtp_debug("Warning: Cannot open log file \"".$this->log_file."\"\n"); 
return FALSE; 
} 
flock($fp, LOCK_EX); 
fputs($fp, $message); 
fclose($fp); 
return TRUE; 
} 
function strip_comment($address) 
{ 
$comment = "\\([^()]*\\)"; 
while (ereg($comment, $address)) { 
$address = ereg_replace($comment, "", $address); 
} 
return $address; 
} 
function get_address($address) 
{ 
$address = ereg_replace("([ \t\r\n])+", "", $address); 
$address = ereg_replace("^.*<(.+)>;.*$", "\\1", $address); 
return $address; 
} 
function smtp_debug($message) 
{ 
if ($this->debug) { 
echo $message; 
} 
} 
} 
function sendmail($smtpserver,$smtpuser,$smtppass,$smtpemailto,$smtpusermail, $mailsubject, $mailbody){ 
$smtp = new smtp($smtpserver,25,true,$smtpuser,$smtppass); 
//$smtp->debug = TRUE; 
$smtp->sendmail($smtpemailto, $smtpusermail, $mailsubject, $mailbody, "HTML"); 
} 
//such as 
//sendmail("smtp.126.com","test@126.com","password","1034555083@qq.com","test@126.com","title","body"); 
?>