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HomeBackend DevelopmentPHP Tutorial 那个大侠用php+smtp发过邮件?请指点一下解决方案

那个大侠用php+smtp发过邮件?请指点一下
我的服务器上装了sendmail,用mail可以发送,测试,qq第三次收到是在垃圾邮件?163收不到?
请问为什么?

$to = "test*****@qq.com";
$subject = "Test mail";
$message = "Hello! This is a simple email message.";
$from = "test*****@qq.com";
$headers = "From: $from";
mail($to,$subject,$message,$headers);
echo "Mail Sent.";
?>

------解决方案--------------------
能收到。说明发信没问题,可能被163拦截了。多测试下。
------解决方案--------------------
使用系统自带的sendmail服务都这样,都会有垃圾邮件的嫌疑。最好使用第三方的smtp来发送,网上很多开源的库

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