必需的邮件标题 [英] Required Mail Headers

问题描述

在注册过程中，我有一个网站发送确认邮件.

I have a website in which I send a confirmation mail as part of the registration process.

前一段时间，由于我不使用标头(PHP邮件功能)，所以我发送的邮件有些麻烦.

Some time ago, I had some troubles with the mails I sent since I used no headers (PHP mail function).

一旦放置了一些标头，用户就会收到更多答复，但是我怀疑并非每条消息都到达了目的地.

Once I put some headers, I've gotten more responses from users, but I suspect that not every message reaches its destination.

如何确定邮件到达目的地?

How can I be sure that the messages reach their destination?

哪些标头可以被视为必须"?

Which are the headers that can be considered a 'must'?

这是我的SendMail函数的代码

This is the code of my SendMail function

mail($to,
    $subject,
        $message,
            "MIME-Version: 1.0\n".
            "Content-type: text/plain; charset=ISO-8859-1; format=flowder\n".
            "Content-Transfer-Encoding: 8bit\n".
            "Message-Id: <" . md5(uniqid(microtime())) . "@mysite.com>\n".
            "Return-Path: <[e-mail]>\n".
            "X-Mailer: PHP v".phpversion()."\n".
            "From: admin@ mysite.com");

推荐答案

标题的底部需要有一个空格，以将标题与主体分开.诸如垃圾邮件刺客"之类的工具会为此给您很大的帮助.

The headers need a white space at the bottom to separate the header from main body. Tools like Spam Assassin will give you a big mark down for that.

此外，您还应该使用 \ r \ n 作为行终止符，而不仅仅是 \ n

Also you should use \r\n as a line terminator instead of just \n

来自PHP.net

多个额外的标头应使用CRLF(\ r \ n)分隔.

Multiple extra headers should be separated with a CRLF (\r\n).

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