PHP mail（）-f参数不起作用 [英] PHP mail() -f parameter is NOT working
问题描述
我对此进行了深入研究。在这里，我在Stack Overflow上发现，如果要使无法传递的邮件反弹，则需要在php mail（）函数中使用-f参数。以下是我的脚本（目前为止）：
I've researched this intensely. Here, at Stack Overflow, I've figured out that one needs to use an -f parameter with the php mail() function, if one wants undeliverable mail to bounce back. Following is my script (as it stands now):
//Send Confirmation email. Following are the variables for the email
// mail function best practices: http://collaborate.extension.org/wiki/Best_Practices_Using_the_PHP_mail_Function
$sendto = $email; // this is the email address collected from the foreach routine.
$e_subject = stripslashes($subject); // Subject
//$message = "<html>" . stripslashes($body) . "</html>";
$message = "
<html>
<body>
<p>Hello " . stripslashes($fName) . ":</p>
<div>" . stripslashes($body) . "</div>
</body>
</html>
";
// Always set content-type when sending HTML email
$header = "MIME-Version: 1.0" . "\r\n";
$header .= 'Content-type: text/html; charset=iso-8859-1' . "\r\n";;
// extract user domain so you can set up X-Mailer
$u_domain=substr(strrchr($user_email, '@'), 1);
$dom_array = explode(".",$u_domain);
$user_domain = $dom_array[0];
$header .= "X-Mailer: ". $user_domain ."\r\n";
$header .= "X-Sender-IP: {$_SERVER['REMOTE_ADDR']}\r\n";
$header .= "X-Originating-IP: [".getenv("REMOTE_ADDR")."]\r\n";
$header .= "From: " . $user_email . "\r\n";
$header .= "Sender: ". $user_email . "\r\n";
// The "envelope sender" is the address listed in the "Return-Path:" header - and controls where the email is sent to in the event that a recipient address bounces. http://collaborate.extension.org/wiki/Best_Practices_Using_the_PHP_mail_Function
$header .= "Return-Path:" . $user_email . "\r\n";
$header .= "Reply-To:" . $user_email . "\r\n";
$bounceTo = "-f". $user_email;
// Collect variables from above and insert into the mail() function.
mail($sendto, $e_subject, $message, $header,$bounceTo);
您会注意到很多评论-我只是想弄清楚这一点。我的mail（）发送得很好。邮件以应有的格式进入我的收件箱。但是... $ bounceTo变量（ -f。$ user_email）无法正常工作。我有意邮寄到3个已知的非活动地址，并且没有收到任何退信。
You'll notice a lot of commenting - I'm just trying to figure this out. My mail() sends wonderfully. The mail is coming into my inbox with formatting as it should be. But... the $bounceTo variable ("-f" . $user_email) is not working. I've intentionally mailed to 3 known inactive addresses, and I'm not getting any bounce backs.
上面代码中的所有标头设置均已就绪，因为我们了解到这些可能会影响反弹。我完全愿意摆脱不必要的标题，并添加必要的内容。但是...在这一点上，脚本似乎很混乱-不会产生反弹。
All the header settings in the above code are in place because I've learned that these may affect bounce backs. I'm totally willing to get rid of un-necessary headers and add what is necessary. But... at this point the script seems to be a mess -which is not producing bounce backs.
欢迎任何建议。
非常感谢：
展馆
推荐答案
在所有服务器上均不允许使用-f覆盖退回地址，尤其是在共享主机服务器上时，通常是不可能的。在这种情况下，通常最好不要使用非常有限的mail（）函数，而要使用smtp库，例如 phpmailer 或 swiftmailer 代替。
Overriding the bounce address with -f is not allowed on all servers, especially if you are on a shared hosting server this is often not possible. In this case, it's often better not to use the very limited mail() function but use a smtp library like phpmailer or swiftmailer instead.
顺便说一句：将邮件发送到无效地址以检查您的退回地址。将它们发送到活动帐户，在消息源中查找 Return-Path标头，这是退信地址。
Btw: you don't have to send mails to an inactive address to check your bounce address. Send them to an active account, in the message source look for the "Return-Path" header, this is the bounce address.
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