PHP模拟SMTP发送邮件的类

 
PHP模拟SMTP发送邮件的类
 
<?php
/*********************************************************
 filename：mail.class.php
 describe：邮箱的配置，经测试可以适用于Linux和windows
 function：检查邮箱的合法性，发送基本的邮箱验证信息
 author：  etongchina@gmail.com
 time：    2008-03-06 20:15
 checked： 2008-03-11 01:03
*********************************************************/
class SEND_MAIL{
/* Public Variables */
 public $smtp_port;
 public $from;
 public $time_out;
 public $host_name;
 public $log_file;
 public $relay_host;
 public $debug;
 public $auth;//需要auth身份验证吗?
 public $user;
 public $pass;
 private $sock;
  //给类变量赋值 定义构造器
   public function __construct($auth = FALSE)
  {
 $this->debug = FALSE;
 $this->relay_host = "smtp.163.com";//服务器名称
 $this->smtp_port = 25;//服务器端口 默认为25 yahoo.cn为465
 $this->time_out = 30; //is used in fsockopen() 默认：30s #
 $this->auth = $auth;
 $this->from = "zhoufeng0128@163.com
";
 $this->user = "zhoufeng0128";//邮箱用户名
 $this->pass = "XXXX";        //邮箱密码
 $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-