夹缝中求生存-在一无所有的php虚拟主机环境下利用smtp发送邮件（二）

夹缝中求生存

前言：在上一篇随笔中，以163个人邮箱作为发送邮箱地址，当收件邮箱为QQ邮箱时，极有可能会被直接扔进邮件垃圾箱里，为了解决这个问题，申请注册企业邮箱，可以减少发出的邮件被当作垃圾邮件的可能性。本文以腾讯企业邮箱为例。

• 既然是企业邮箱，首先前提是你得有一个自己的域名。然后就可以去申请免费的腾讯企业邮箱账户，传送门。
  
• 按照免费腾讯企业邮箱的申请要求，验证域名所有权后在域名提供商处设置好MX解析。下图是我在阿里云的域名设置。
• 设置好网站邮箱管理员后，可添加一个成员账户，比如命名为service@xxx.com(xxx.com是你的域名)，该邮箱地址将作为对外发邮件的账户。
• 记得要确保设置好开启该邮箱的账户smtp服务，邮箱->客户端设置里设置。
• 下面就可以愉快的玩耍了。

mail.php

<?php
function send_mail($name, $to, $subject = 'No subject', $body) {
    $loc_host = "ooo";                 //主机名，随意
    $smtp_acc = "service@XXX.com";        //你的邮箱
    $smtp_pass="XXXXX";              //邮箱登陆密码，不是授权码，163个人邮箱才是授权码。
    $smtp_host="smtp.exmail.qq.com";    //腾讯企业邮箱地址
    $from="service@xxx.com";              //你的邮箱
    $headers = "Content-Type: text/html; charset="utf-8"
Content-Transfer-Encoding: base64";
    $lb="
";                         //linebreak
    $hdr = explode($lb,$headers);     
    if($body) {
        $bdy = preg_replace("/^./","..",explode($lb,$body));
    }

    $smtp = array(

        array("EHLO ".$loc_host.$lb,"220,250","HELO error: "),

        array("AUTH LOGIN".$lb,"334","AUTH error:"),

        array(base64_encode($smtp_acc).$lb,"334","AUTHENTIFICATION error : "),

        array(base64_encode($smtp_pass).$lb,"235","AUTHENTIFICATION error : ")
    );

    $smtp[] = array("MAIL FROM: <".$from.">".$lb,"250","MAIL FROM error: ");

    $smtp[] = array("RCPT TO: <".$to.">".$lb,"250","RCPT TO error: ");

    $smtp[] = array("DATA".$lb,"354","DATA error: ");

    $smtp[] = array("From: ".$name."<".$from.">".$lb,"","");

    $smtp[] = array("To: ".$to.$lb,"","");

    $smtp[] = array("Subject: ".$subject.$lb,"","");

    foreach($hdr as $h) {$smtp[] = array($h.$lb,"","");}

    $smtp[] = array($lb,"","");

    if($bdy) {foreach($bdy as $b) {$smtp[] = array(base64_encode($b.$lb).$lb,"","");}}

    $smtp[] = array(".".$lb,"250","DATA(end)error: ");

    $smtp[] = array("QUIT".$lb,"221","QUIT error: ");


    $fp = @fsockopen($smtp_host, 25);
    if (!$fp) echo "Error: Cannot conect to ".$smtp_host."";
    while($result = @fgets($fp, 1024)){
        if(substr($result,3,1) == " ") { break; }
    }

    $result_str="";

    foreach($smtp as $req){

        @fputs($fp, $req[0]);

        if($req[1]){

            while($result = @fgets($fp, 1024)){
                if(substr($result,3,1) == " ") { break; }
            };
            if (!strstr($req[1],substr($result,0,3))){
                $result_str.=$req[2].$result."";
            }
        }
    }

    @fclose($fp);
    return 1;
}


?>

send.php

<?php
header("Content-Type: text/html; charset=utf-8");
include_once("mail.php");
send_mail("发件人", "收件邮箱","邮件标题"],"内容");
echo "<h1>邮件已发送</h1>";
?>