php smtp实现发送邮件功能

function smtp_sockopen_mx($address)
{
$domain = preg_replace("^.+@([^@]+)$","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,$this->time_out);
if (!($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."rn".$body);
$this->smtp_debug("> ".str_replace("rn","n"."> ",$header."n> ".$body."n> "));
return TRUE;
}

function smtp_eom()
{
fputs($this->sock,"rn.rn");
$this->smtp_debug(". [EOM]n");
return $this->smtp_ok();
}

function smtp_ok()
{
$response = str_replace("rn","",fgets($this->sock,512));
$this->smtp_debug($response."n");
if (!preg_match("/^[23]/",$response))
{
fputs($this->sock,"QUITrn");
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."rn");
$this->smtp_debug("> ".$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)
{
$comment = "/([^()]*)/";
while (preg_match($comment,$address))
{
$address = preg_replace($comment,$address);
}
return $address;
}

（编辑：网站开发网_安阳站长网）

【声明】本站内容均来自网络，其相关言论仅代表作者个人观点，不代表本站立场。若无意侵犯到您的权利，请及时与联系站长删除相关内容!