一个smtp邮件发送类(php4)

上一篇 / 下一篇 2007-04-27 01:40:53 / 个人分类：php

<?php

class smail {
    //您的SMTP 服务器供应商，可以是域名或IP地址
    var $smtp = "smtp.163.com";
    //SMTP需要要身份验证设值为 1 不需要身份验证值为 0，现在大多数的SMTP服务商都要验证，如不清楚请与你的smtp 服务商联系。
    var $check = 1;
    //您的email帐号名称
    var $username = "";
    //您的email密码
    var $password = "";
    //此email 必需是发信服务器上的email
    var $s_from = "";

    /*
    * 功能：发信初始化设置
    * $from      你的发信服务器上的邮箱
    * $password 你的邮箱密码
    * $smtp      您的SMTP 服务器供应商，可以是域名或IP地址
    * $check     SMTP需要要身份验证设值为 1 不需要身份验证值为 0，现在大多数的SMTP服务商都要验证
    */
    function smail ( $from, $password, $smtp, $check = 1 ) {
        if( preg_match("/^[^\d\-_][\w\-]*[^\-_]@[^\-][a-zA-Z\d\-]+[^\-](\.[^\-][a-zA-Z\d\-]*[^\-])*\.[a-zA-Z]{2,3}/", $from ) ) {
            $this->username = substr( $from, 0, strpos( $from , "@" ) );
            $this->password = $password;
            $this->smtp = $smtp ? $smtp : $this->smtp;
            $this->check = $check;
            $this->s_from = $from;
        }
    }

/*
* 功能：发送邮件
* $to   目标邮箱
* $from 来源邮箱
* $subject 邮件标题
* $message 邮件内容
*/
    function send ( $to, $from, $subject, $message ) {

        //连接服务器
        $fp = fsockopen ( $this->smtp, 25, $errno, $errstr, 60);
        if (!$fp ) return "联接服务器失败".__LINE__;
        set_socket_blocking($fp, true );

        $lastmessage=fgets($fp,512);
        if ( substr($lastmessage,0,3) != 220 ) return "错误信息:".$lastmessage.__LINE__;

        //HELO
        $yourname = "YOURNAME";
        if($this->check == "1") $lastact="EHLO ".$yourname."\r\n";
        else $lastact="HELO ".$yourname."\r\n";

        fputs($fp, $lastact);
        $lastmessage == fgets($fp,512);

        if (substr($lastmessage,0,3) != 220 ) return "错误信息$lastmessage".__LINE__;
        while (true) {

        $lastmessage = fgets($fp,512);

        if ( (substr($lastmessage,3,1) != "-") or (empty($lastmessage)) )
        break;
        }


        //身份验证
        if ($this->check=="1") {
            //验证开始
            $lastact="AUTH LOGIN"."\r\n";
            fputs( $fp, $lastact);
            $lastmessage = fgets ($fp,512);
            if (substr($lastmessage,0,3) != 334) return "错误信息$lastmessage".__LINE__;

            //用户姓名
            $lastact=base64_encode($this->username)."\r\n";
            fputs( $fp, $lastact);
            $lastmessage = fgets ($fp,512);
            if (substr($lastmessage,0,3) != 334) return "错误信息$lastmessage".__LINE__;

            //用户密码
            $lastact=base64_encode($this->password)."\r\n";
            fputs( $fp, $lastact);
            $lastmessage = fgets ($fp,512);
            if (substr($lastmessage,0,3) != "235") return "错误信息$lastmessage".__LINE__;
        }

        //FROM:
        $lastact="MAIL FROM: ". $this->s_from . "\r\n";
        fputs( $fp, $lastact);
        $lastmessage = fgets ($fp,512);
        if (substr($lastmessage,0,3) != 250) return "错误信息$lastmessage".__LINE__;

        //TO:
        $lastact="RCPT TO: $to" . "\r\n";
        fputs( $fp, $lastact);
        $lastmessage = fgets ($fp,512);
        if (substr($lastmessage,0,3) != 250) return "错误信息$lastmessage".__LINE__;

        //DATA
        $lastact="DATA\r\n";
        fputs($fp, $lastact);
        $lastmessage = fgets ($fp,512);
        if (substr($lastmessage,0,3) != 354) return "错误信息$lastmessage".__LINE__;


        //处理Subject头
        $head="Subject: $subject\r\n";
        $message = $head."\r\n".$message;


        //处理From头
        $head="From: $from\r\n";
        $message = $head.$message;

        //处理To头
        $head="To: $to\r\n";
        $message = $head.$message;


        //加上结束串
        $message .= "\r\n.\r\n";

        //发送信息
        fputs($fp, $message);
        $lastact="QUIT\r\n";

        fputs($fp,$lastace);
        fclose($fp);
        return 0;
        }
}
/*发送示例
$sm = new smail( "用户名@163.com", "密码", "smtp.163.com" );
$end = $sm->send( "目标邮箱", "来源邮箱", "这是标题", "这是邮件内容" );
if( $end ) echo $end;
else echo "发送成功！";
*/
?>