发送 Email 问题。错误信息"NO SENDER"

[nchen123]

我用一个 smtp 的类发信，打开了调试信息（设定 debug=true）。在本机运行正确，传到服务器上就在发送 DATA 命令之后始终得到 "NO SENDER" 的回应。（我代码使用的另一个 smtp 服务器，跟本机 smtp 服务无关）。

详细调试信息如下：

Trying to ip地址:20
220 xyz.com ESMTP MDaemon 8.1.3; Thu, 27 Jul 2006 16:45:05 +0800
Connected to relay host ip地址
> HELO localhost
250 xyz.com Hello localhost, pleased to meet you
> MAIL FROM:<[e-mail]>
250 <[e-mail]>, Sender ok
> RCPT TO:<[e-mail]>
250 <[e-mail]>, Recipient ok
> DATA
503 No sender.
Error: Remote host returned "503 No sender."
Error: Error occurred while sending DATA command.
Error: Cannot send email to <[e-mail]>
Disconnected from remote host

（上面信息里面的地址我换成了虚假的信息）

请问这个问题可能的原因是什么？如何解决？
本机和服务器的操作系统都是 Windows.

这个 smtp 类的代码如下：

[nchen123]

<?php
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;
}

[nchen123]

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;
}
}
}
?>

[nchen123]

有人知道吗？

[颓废的老猫]

顶上

[lantersen]

"NO SENDER"//你是你自己定义的错误信息，
还是系统反馈的，从字面理解，没有设置发信人//纯属个人字面理解，把斑竹拉进来

[wildlily980]

好像没有看到用户名及密码验证信息。难道你不需要验证吗？
如果你需要，可以用小露珠那个类，稍微改动一下就可以使用。

[nchen123]

yunfeifan(云飞凡)

不理解。
同样的程序在我本机运行是可以的。说明在 smtp 应答上的语法都是一样的阿。

[wildlily980]

小露珠那个smtp类在csdn搜索一下就可以得到。
但是它需要密码验证。

[jacky421]

专业帮顶

[nchen123]

wildlily980(小李)

这个 smtp 服务器不需要身份验证。因为我用自己本机调试没有任何问题。
你说的“小露珠”的类请问在哪里？

[yunfeifan]

sender 就是mail from ，smtp服务商可能需要定义sender email才能使用，如果服务商定义了email，你就要遵循服务商的写得sender 来写mail from

[nchen123]

我自己解决了，使用了小露珠这个类，但是也不能直接用。
因为其中有些地方用 \r\n, 有些地方只用 \n, 没有统一，导致邮件服务器还是发出 "NO SENDER" 的应答，统一为 \r\n 就能发送了。

估计原来我用的那个类也是类似的问题导致的。