在additional_header中找到多个或格式错误的换行符

Question

我在mail（）函数中收到错误。

PHP Warning: mail(): Multiple or malformed newlines found in additional_header

当我在谷歌上搜索时，我遇到了some suggestions。但删除additional_headers中的多个新行不起作用。我该如何解决这个问题？

$separate =md5(time());
$el=PHP_EOL;
$headers  = "From: ".$sndr.$el;
$headers .= "Reply-To: ".$sndr.$el;
$headers .= "MIME-Version: 1.0".$el; 
$headers .= "Content-Type: multipart/mixed; boundary=\"".$separate."\"".$el; 
$headers .= "Content-Transfer-Encoding: 7bit".$el;
$headers .= "This is a MIME encoded message.".$el;
$headers .= "--".$separate.$el;
$headers .= "Content-Type: text/html; charset=\"iso-8859-1\"".$el;
$headers .= "Content-Transfer-Encoding: 8bit".$el;
$headers .= $message.$el;

Answer 1

您已将邮件插入标题：

$headers .= $message.$el;

所以你有

From: someone@somewhere.com
blah: blah
Hi mom!
Content-type: blah blah

这是一封非法电子邮件。