PHP的邮件功能-如何更改标题中的发件人：不发送电子邮件？

Question

The one email From:support@lead.com works fine. But when changed to john.doe@lead.com it doesn't work? See below.

Both are valid email addresses (fictitious for this example) in the domain from which they are sent.

I have the question into Netfirms support too. I expect to move to phpmailer or API to a ESP (eg, mailchimp) account soon, but this is just bugging me that the little change breaks the email function.

Code:

Works:

$headers = "Mime-Version: 1.0\n"; 
$headers .= "Content-Type: text/html;charset=UTF-8\n"; 
$headers .= 'From: support@lead.com' . "\r\n"; 
$headers .= 'Bcc: bcc@lead.com' . "\r\n";   
//   $headers .= 'Return-Path: bcc@lead.com' . "\r\n";  
mb_internal_encoding("UTF-8"); 
if (!mail($to, $subject, $body, $headers, "-f bcc@mylead.com")) echo ("Message delivery failed"); 

Doesn't Work: (only changed support to john.doe):

$headers = "Mime-Version: 1.0\n"; 
$headers .= "Content-Type: text/html;charset=UTF-8\n"; 
$headers .= 'From: john.doe@lead.com' . "\r\n"; 
//   $headers .= 'Return-Path: bcc@lead.com' . "\r\n";  
mb_internal_encoding("UTF-8"); 
if (!mail($to, $subject, $body, $headers, "-f bcc@lead.com")) echo ("Message delivery failed"); 

Answer 1

不知道这到底有多重要，但是您在标头中混合了\\ n和\\ r \\ n，这可能会使您的邮件服务器感到困惑……您介意尝试一下吗？