这篇文章主要介绍了关于PHP简单实现发送邮件和防被当成垃圾邮件处理，有着一定的参考价值，现在分享给大家，有需要的朋友可以参考一下
邮件服务器使用的是163邮箱的
需要去163邮箱申请邮箱和设置客户端授权密码。
登录163邮箱->设置->POP3/SMTP/IMAP->客户端授权密码
![3787418216-5b4184d34d807_articlex[1].png](https://img.php.cn//upload/image/910/250/501/1531102453621001.png "1531102453621001.png")
![2514000963-5b4184f725a1b_articlex[1].png](https://img.php.cn//upload/image/170/823/590/1531102461219984.png "1531102461219984.png")
设置好要记住！
下面就是代码了
index.html
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>PHP发邮件 - BY TANKING</title>
<style type="text/css">
*{margin:0px;padding: 0px;}
h3{
text-align: center;
margin-top: 50px;
}
#form-p{
width: 300px;
margin:20px auto;
}
#form-p .input_style{
width: 100%;
height: 35px;
font-size: 16px;
text-indent: 5px;
margin-bottom: 5px;
}
#form-p .textarea_style{
width: 100%;
height: 65px;
font-size: 16px;
text-indent: 5px;
resize: none;
}
#form-p .sendbtn{
width: 100%;
height: 35px;
font-size: 16px;
cursor: pointer;
margin-top: 5px;
}
#result .yes{
position: fixed;
top: 0px;
background: #5cb85c;
width: 100%;
height: 35px;
line-height: 35px;
text-align: center;
color: #fff;
font-weight: bold;
}
#result .no{
position: fixed;
top: 0px;
background: #c00;
width: 100%;
height: 35px;
line-height: 35px;
text-align: center;
color: #fff;
font-weight: bold;
}
</style>
</head>
<body>
<h3>PHP发邮件-BY TANKING</h3>
<p id="form-p">
<form action="mail.php" method="POST">
<input name="email" type="text" placeholder="接收邮箱" class="input_style"/><br/>
<input name="title" type="text" placeholder="标题" class="input_style"/><br/>
<input name="content" type="text" placeholder="内容" class="input_style"/><br/>
<input type="submit" value="发送" class="sendbtn"/>
</form>
</p>
</body>
</html>![284682272-5b41851b9066d_articlex[1].png](https://img.php.cn//upload/image/994/575/931/1531102478508829.png "1531102478508829.png")
mail.php
<?php
//获取表单提交的邮件标题
$title = $_POST["title"];
//获取表单提交的内容
$content = $_POST["content"];
include_once("smtp.class.php");
$smtpserver = "smtp.163.com"; //SMTP服务器
$smtpserverport = 25; //SMTP服务器端口
//获取表单提交的邮件接收人邮箱号码
$email = $_POST["email"];
$smtpusermail = "你的163邮箱地址"; //SMTP服务器的用户邮箱
$smtpuser = "你的163邮箱地址"; //SMTP服务器的用户帐号
$smtppass = "授权密码"; //SMTP服务器的授权密码
$smtp = new Smtp($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.
$emailtype = "HTML"; //信件类型，文本:text；网页：HTML
$smtpemailto = $email;
$smtpemailfrom = $smtpusermail;
$emailsubject = $title;
$emailbody = "<p>".$content."</p>";
//开始发送邮件
$smtp->sendmail($smtpemailto, $smtpemailfrom, $emailsubject, $emailbody, $emailtype);
echo "发送成功！";
?>mail.php
里面只需设置你的163账号和授权密码即可
还有一个文件
smtp.class.php
这个不要动就行，拷贝到同一目录。
<?php
//TANKING
//2018-7-7
error_reporting(0);
class Smtp {
/* Public Variables */
var $smtp_port;
var $time_out;
var $host_name;
var $log_file;
var $relay_host;
var $debug;
var $auth;
var $user;
var $pass;
/* Private Variables */
var $sock;
/* Constractor */
function smtp($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 = ereg_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) {
$domain = ereg_replace("^.+@([^@]+)$", "\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->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 (!ereg("^[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 (ereg($comment, $address)) {
$address = ereg_replace($comment, "", $address);
}
return $address;
}
function get_address($address) {
$address = ereg_replace("([ \t\r\n])+", "", $address);
$address = ereg_replace("^.*<(.+)>.*$", "\1", $address);
return $address;
}
function smtp_debug($message) {
if ($this->debug) {
echo $message . "
;";
}
}
}
?>![2166735223-5b41855a794d4_articlex[1].png](https://img.php.cn//upload/image/202/868/606/1531102498284584.png "1531102498284584.png")
![4128591291-5b41856392d64_articlex[1].png](https://img.php.cn//upload/image/517/193/622/1531102507781661.png "1531102507781661.png")
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