Solve the problem that 163/sohu/sina cannot receive emails sent by the PHP MAIL function

Solve the problem that 163/sohu/sina cannot receive emails sent by the PHP MAIL function_PHP Tutorial

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Release： 2016-07-21 15:47:30

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复制代码代码如下:

// multiple recipients
$to = 'aidan@example.com' . ', '; // note the comma
$to .= 'wez@example.com';
// subject
$subject = 'Birthday Reminders for August';
// message
$message = '

Birthday Reminders for August

Here are the birthdays upcoming in August!

Person	Day	Month	Year
Joe	3rd	August	1970
Sally	17th	August	1973

';
// To send HTML mail, the Content-type header must be set
$headers = 'MIME-Version: 1.0' . "rn";
$headers .= 'Content-type: text/html; charset=iso-8859-1' . "rn";
// Additional headers
$headers .= 'To: Mary , Kelly ' . "rn";
$headers .= 'From: Birthday Reminder ' . "rn";
$headers .= 'Cc: birthdayarchive@example.com' . "rn";
$headers .= 'Bcc: birthdaycheck@example.com' . "rn";
// Mail it
mail($to, $subject, $message, $headers);

查看sendmail的maillog,发现奇怪的内容。

复制代码代码如下:

Mar 1 11:28:03 shaohui.org sendmail[27526]: n213S1Xc027524: to=, ctladdr= (500/500), delay=00:00:02, xdelay=00:00:01, mailer=esmtp, pri=150812, relay=163mx03.mxmail.netease.com. [220.181.12.72], dsn=5.0.0, stat=Service unavailable

但是，如果我使用Linux Shell 的mail命令是可以发送成功的，不过多加了一条-f 参数伪造发件人。这是唯一的不同，于是maillog 的其中一个字段ctladdr显示也不一样。不再是apache用户，我怀疑163等国内的邮件服务提供商，把所有的apache的用户的邮件当成垃圾邮件处理掉了。

复制代码代码如下:

Feb 25 23:44:59 shaohui sendmail[13067]: n1PFixH4013067: to=shaohui_1983@163.com, ctladdr=contact@shaohui.org (0/0), delay=00:00:00, xdelay=00:00:00, mailer=relay, pri=30869, relay=[127.0.0.1] [127.0.0.1], dsn=2.0.0, stat=Sent (n1PFixdx013068 Message accepted for delivery)

根源找到，于是问题就很好解决了，查一下php的手册，发现mail函数原来也是可以伪造发件人的。

复制代码代码如下:

bool mail ( string $to , string $subject , string $message [, string $additional_headers [, string $additional_parameters ]] )

在第六个参数additional_parameters使用额外的参数"-f sender_addr@mydomain.com", 问题就解决了。