使用PHP附加到MIME电子邮件是否有最大合理的文件大小?

时间:2010-10-26 10:33:23

标签: php email iis-6 mime attachment

我在IIS6上运行PHP。我有一些PHP成功发送1KB图像作为电子邮件的附件。当我尝试附加一个500KB的PDF(更改了内容类型)时,它会挂起,几分钟后我得到“FastCGI进程超出配置的请求超时”(错误号258(0x80070102))。

有关为什么花费这么长时间来附加PDF的任何想法?解决方案不是增加超时限制,我不能让用户在文件发送时坐在那里3分钟以上。

我在下面提供了我的代码:

    $headers   = "From: ".$from."\r\n";
    $headers .= "Reply-To: ".$from."\r\n";
    $headers .= "MIME-Version: 1.0\r\n";
    $headers .= "Content-Type: multipart/mixed; boundary=\"".$uid."\"\r\n\r\n"; 
    $headers .="This is a multipart message in MIME format. \r\n\r\n";

    $headers .= "--".$uid."\r\n\r\n";
    $headers .= "Content-Type: text/plain; charset-iso-8859-1\r\n";
    $headers .= "Content-Transfer-Encoding: quoted-printable\r\n\r\n";
    $headers .= $text . "\r\n\r\n";

    $headers .= "--".$uid."\r\n\r\n";
    $headers .= "Content-Type: text/html; charset-iso-8859-1\r\n";
    $headers .= "Content-Transfer-Encoding: 7bit\r\n\r\n";
    $headers .= $html  . "\r\n\r\n";

    $headers .= "--".$uid."\r\n\r\n";
    $headers .= "Content-Type: image/png; name=\"".$filename."\"\r\n";
    $headers .= "Content-Transfer-Encoding: base64\r\n";
    $headers .= "Content-Disposition: attachment; filename=\"".$filename."\"\r\n\r\n";
    $attachment = chunk_split(base64_encode(file_get_contents($path.$filename))); 
    $headers .= $attachment . "\r\n\r\n";

    $headers .= "--".$uid."\r\n\r\n";

    //send the email 
    $mail_sent = @mail( $to, $subject, $text, $headers );

提前感谢任何建议。

1 个答案:

答案 0 :(得分:2)

将附件放在mail()函数的message参数中,而不是附加的headers参数。

我今天遇到了同样的问题,发现我无法将大文件作为mail()函数中headers参数的一部分提交。

e.g。

$headers   = "From: ".$from."\r\n";
$headers .= "Reply-To: ".$from."\r\n";
$headers .= "MIME-Version: 1.0\r\n";
$headers .= "Content-Type: multipart/mixed; boundary=\"".$uid."\"\r\n\r\n"; 
$body .="This is a multipart message in MIME format. \r\n\r\n";

$body .= "--".$uid."\r\n\r\n";
$body .= "Content-Type: text/plain; charset-iso-8859-1\r\n";
$body .= "Content-Transfer-Encoding: quoted-printable\r\n\r\n";
$body .= $text . "\r\n\r\n";

$body .= "--".$uid."\r\n\r\n";
$body .= "Content-Type: text/html; charset-iso-8859-1\r\n";
$body .= "Content-Transfer-Encoding: 7bit\r\n\r\n";
$body .= $html  . "\r\n\r\n";

$body .= "--".$uid."\r\n\r\n";
$body .= "Content-Type: image/png; name=\"".$filename."\"\r\n";
$body .= "Content-Transfer-Encoding: base64\r\n";
$body .= "Content-Disposition: attachment; filename=\"".$filename."\"\r\n\r\n";
$attachment = chunk_split(base64_encode(file_get_contents($path.$filename))); 
$body .= $attachment . "\r\n\r\n";

$body .= "--".$uid."\r\n\r\n";

//send the email 
$mail_sent = @mail( $to, $subject, $body, $headers );