幾年前開通的qq企業郵箱，可以正常使用smtp發送郵件。
今天重新使用發現不行，研究後發現問題主要出在2個地方：1.qq企業郵箱強制要求ssl方式請求；2.smtp郵箱賬號密碼爲qq企業郵箱的客戶端密碼。以下附上完整的類文件，並就2個問題的解決逐一記錄。
首先貼上類文件：
<?php
/*
* 郵件功能：郵箱驗證、系統消息發送
* @date 11.7.2014
* @author yuanjiang 932625974#qq.com
*/
if(!defined('IN_T')){
die('hacking attempt');
}
class smtp{
/* private Variables */
private $smtp_port;
private $time_out;
private $host_name;
private $log_file;
private $relay_host;
private $auth;
private $user;
private $pass;
private $usermail;
private $username;
private $sock;
public $debug;
/* Constractor */
function __construct($relay_host = "", $smtp_port = 25,$auth = false, $user, $pass, $usermail, $username)
{
$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->usermail = $usermail;
$this->username = $username;
$this->host_name = "localhost"; //is used in HELO command
$this->log_file = "";
$this->sock = FALSE;
}
/* Main Function */
function sendmail($to, $subject = "", $body = "", $mailtype, $cc = "", $bcc = "", $additional_headers = "")
{
$from = $this->usermail;
$username = $this->username;
$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";
}
$header .= "From: ".$username."<".$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;
}
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;
}
}
}
/*
以下是使用實例，工作正常
##########################################
*
$smtpserver = "smtp.exmail.qq.com";//SMTP服務器
$smtpserverport = 25;//SMTP服務器端口
$smtpuser = "[email protected]";//SMTP服務器的用戶帳號
$smtppass = "abc";//SMTP服務器的用戶密碼
$usermail = "[email protected]";//SMTP服務器的用戶郵箱
$username = 'abcname'; //STMP用戶郵箱的名稱
$smtpemailto = "[email protected]";//發送給誰
$mailsubject = "找回密碼";//郵件主題
$mailbody = "<h1>找回密碼郵件</h1>點擊這裏驗證哦";//郵件內容
$mailtype = "HTML";//郵件格式（HTML/TXT）,TXT爲文本郵件
##########################################
$smtp = new smtp($smtpserver,$smtpserverport,true,$smtpuser,$smtppass, $usermail, $username);//這裏面的一個true是表示使用身份驗證,否則不使用身份驗證.
$smtp->debug = false;//是否顯示發送的調試信息
$smtp->sendmail($smtpemailto, $mailsubject, $mailbody, $mailtype);
*/
?>
使用方式如類中所示，解決問題1，是需要將smtpserver加上ssl協議，請求端口改爲465，如圖：
如果是之前的qq企業郵箱老用戶，在這個地方發送郵件會返回501錯誤，問題在於stmppass必須是客戶端授權密碼，而不是登錄qq企業郵箱的密碼，開啓客戶端授權密碼的步驟如下：
1.在企業郵箱後臺，進入“設置”-“微信綁定”-“微信設置”，點擊“綁定微信”。打開微信使用“掃一掃”掃描此二維碼，在微信上點擊【確定】完成綁定。
2.完成微信綁定後，在安全登錄中點擊開啓安全登錄，然後可以看到“客戶端專用密碼”選項，點擊“生成新密碼”，即可看到分配的客戶端專用密碼。