无后台网站,获取网页留言;通过第三方邮箱的 stmp 将网站留言发送至指定邮箱。

本文以 163 邮箱为例,打开 stmp 服务

开启163邮箱,stmp服务

开启163邮箱,stmp服务

测试 demo

send.html 内容

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<!DOCTYPE html>
<html lang="cn-zh">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>PHP利用smtp类发送邮件范例</title>
</head>
<body>
<form action="sendmail.php" method="post">
<p>收件人:<input type="text" name="toemail" /></p>
<p>标  题:<input type="text" name="title" /></p>
<p>内  容:<textarea name="content" cols="50" rows="5"></textarea></p>
<p><input type="submit" value="发送" /></p>
</form>
</body>
</html>

sendmail.php 内容

把 $smtpusermail 和 $smtpuser 的值修改为邮箱名;
$smtppass 的值 修改为你的 SMTP 授权密码。

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<?php
require_once "Smtp.class.php";
//******************** 配置信息 ********************************
$smtpserver = "ssl://smtp.163.com";//SMTP服务器
$smtpserverport =994;//SMTP服务器端口
$smtpusermail = "xxx@163.com";//SMTP服务器的用户邮箱
$smtpemailto = $_POST['toemail'];//发送给谁
$smtpuser = "xxx@163.com";//SMTP服务器的用户帐号,注:部分邮箱只需填前面的用户名
$smtppass = "xxxxxxxxx";//SMTP服务器的用户密码
$mailtitle = $_POST['title'];//邮件主题
$mailcontent = "<h1>".$_POST['content']."</h1>";//邮件内容
$mailtype = "HTML";//邮件格式(HTML/TXT),TXT为文本邮件
//************************ 配置信息 ****************************
$smtp = new Smtp($smtpserver,$smtpserverport,true,$smtpuser,$smtppass);//这里面的一个true是表示使用身份验证,否则不使用身份验证.
$smtp->debug = false;//是否显示发送的调试信息
$state = $smtp->sendmail($smtpemailto, $smtpusermail, $mailtitle, $mailcontent, $mailtype);

echo "<div style='width:300px; margin:36px auto;'>";
if($state==""){
echo "对不起,邮件发送失败!请检查邮箱填写是否有误。";
echo "<a href='index.html'>点此返回</a>";
exit();
}
echo "恭喜!邮件发送成功!!";
echo "<a href='index.html'>点此返回</a>";
echo "</div>";
?>

Smtp.class.php 内容

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<?php

/**
* email smtp (support php7)
*
* Modified by: Reson 2017/06
* UPDATE:
* 1、change ereg to preg_match;change ereg_replace to preg_replace.
* 2、change var to public/private.
*
* More: http://www.daixiaorui.com
*
*/

class Smtp
{
/* Public Variables */
public $smtp_port;

public $time_out;

public $host_name;

public $log_file;

public $relay_host;

public $debug;

public $auth;

public $user;

public $pass;

/* Private Variables */
private $sock;

/* Constractor */
function __construct($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 = preg_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 <CR><LF>.<CR><LF> [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)
{

$domain = preg_replace("/^.+@([^@]+)$/", "\1", $address);

if (!@getmxrr($domain, $MXHOSTS)) {

$this->log_write("Error: Cannot resolve MX \"".$domain."\"\n");

return FALSE;

}

//专注与php学习 http://www.daixiaorui.com 欢迎您的访问

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 (!preg_match("/^[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 (preg_match($comment, $address)) {

$address = preg_replace($comment, "", $address);

}

return $address;

}


function get_address($address)
{

$address = preg_replace("/([ \t\r\n])+/", "", $address);

$address = preg_replace("/^.*<(.+)>.*$/", "\1", $address);

return $address;

}

function smtp_debug($message)
{

if ($this->debug) {

echo $message;

}

}

}