警告：mail（）[function.mail]：SMTP服务器响应：553我们不传递非本地邮件，对不起。和 [英] Warning: mail() [function.mail]: SMTP server response: 553 We do not relay non-local mail, sorry. and

问题描述

以下脚本使用 mail 函数发送电子邮件。但是我无法发送电子邮件。点击提交将显示：

The following script sends email using mail function . But i am unable to send an email.Upon clicking submit this gets displayed :

Warning: mail() [function.mail]: SMTP server response: 553 We do not relay non-local mail, sorry. in E:\xampp\htdocs\feedback.php on line 19
mail sent successfully

SCRIPT

<?php 
if( isset( $_REQUEST['email'] ) ) {
    $email = $_REQUEST['email'];
    $subject = $_REQUEST['subject'];
    $message = $_REQUEST['message'];
    mail("[e-mail]" , $subject , $message , "From:".$email );
    echo "mail sent successfully";
}  else {
     echo "<form method = 'post' action = 'feedback.php'>
     Email of sender : <input name = 'email' type = 'text' /> <br/>
     Subject : <input name = 'subject' type = 'text'/> <br/>
     Enter your feedback here : <textarea name = 'message' rows = 15 cols = 40 > </textarea> <br/>
     <input type = 'submit'/>
     </form>";
   }
?>

我使用Apache作为php服务器

同时告诉我们为什么要写 $ subject ， $ message ie由于我们已经声明了 $ 登录邮件参数，因为我们已经声明了 $ email ， $ message 等，就在上面。为什么我们不能写短信，电子邮件，没有美元符号？

Also tell why we have to write $subject , $message i.e with the $ sign in the mail argument , since we have declared $email , $message etc. , just above. Why can't we just write message , email , .. without the dollar sign?

推荐答案

1. 您正在使用默认情况下附带Mercury的XAMPP，默认情况下，它不配置为将邮件发送到其他服务器。它基本上是调试。 说明确实存在进行配置要做到这一点，但Windows + Apache通常最好只是作为我的经验中的调试环境。

1. You're using XAMPP which by default comes with Mercury, which is not configured to send mail to a different server by default. It is basically there for debugging. Instructions do exist to configure it to do so, but Windows + Apache is generally best only as a debugging environment in my experience.

PHP变量都有$。它被称为 sigil 。它们与常量，类定义和函数区分开来。如果要分配值，然后将其发送到函数中，则需要使用变量。您可以使用 define 设置常量足够重要，但相信我，这些情况是罕见的，你一般应该避免他们。

PHP variables all have the $ before them. It's called a sigil. It is what distinguishes them from, say, constants, class definitions, and functions. If you want to assign a value and then send it into a function, you need to use variables. You can use define to set a constant if it is important enough, but trust me, those situations are rare and you should generally avoid them.

你也可以做但是，这样做：

You can also do this, however:

mail("[e-mail]" , 
      $_REQUEST['subject'] , 
      $_REQUEST['message'] , 
      "From:".$_REQUEST['email'] );

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