PHP mail() form sending to GMAIL spam

问题

I know this problem has been addressed a few times on here. I tried following the directions for setting proper headers, I still run into problems with my emails going into the spam filter in Gmail.

If anyone can please take a look at what I've tried, I'd really appreciate it. The code below is without the headers added as explained here: http://www.velvetblues.com/web-development-blog/avoid-spam-filters-with-php-mail-emails/

Thanks in advance.

define("WEBMASTER_EMAIL", 'myName@mydomain.com');
if($post)
{
    $name    = stripslashes($_POST['name']);
    $email   = trim($_POST['email']);
    $subject = trim($_POST['subject']);
    $message = stripslashes($_POST['message']);

    $error = '';

    // Check name
    if(!$name)
        $error .= 'Name required! ';

    // Check email
    if(!$email)
        $error .= 'E-mail required! ';

    if($email && !ValidateEmail($email))
        $error .= 'E-mail address is not valid! ';

    // Check message
    if(!$message)
        $error .= "Please enter your message!";

    if(!$error)
    {

        $mail = mail(WEBMASTER_EMAIL, $subject, $message,
            "From: ".$name." <".$email.">\r\n"
            ."Reply-To: ".$email."\r\n"
            ."X-Mailer: PHP/" . phpversion());

        if($mail)
            echo 'OK';
    }
    else
        echo '<div class="errormsg">'.$error.'</div>';
}

回答1:

Use this code :

 $to = Email;
 $subject = subject ;
 $body = "<div> hi hi .. </div>";

    $headers = 'From: YourLogoName info@domain.com' . "\r\n" ;
    $headers .='Reply-To: '. $to . "\r\n" ;
    $headers .='X-Mailer: PHP/' . phpversion();
    $headers .= "MIME-Version: 1.0\r\n";
    $headers .= "Content-type: text/html; charset=iso-8859-1\r\n";   
if(mail($to, $subject, $body,$headers)) {
  echo('<br>'."Email Sent ;D ".'</br>');
  } 
  else 
  {
  echo("<p>Email Message delivery failed...</p>");
  }

回答2:

I think this is your issue:

 "From: ".$name." <".$email.">\r\n"

since you are not gmail, hotmail or your users email provider, you cannot have "From: otherdomain.com" and then deliver the mail via "mail.yourdomain.com" - this will most likely move your mail to the spam folder.

Try

 "From: YourWebsiteName <noreply@yourwebsite.com>\r\n"
."Reply-To: ".$name." <".$email.">\r\n"

instead.

ALso: your code is very unsave and a prime spam target - google "email header injection php"!

回答3:

Google tends to discipline not only the websites but also service providers who used to have many users spamming across the network. If you are signed up to one of these service providers that google recognizes as spammers this might be the reason why your php mail() messages drops in to spam box in gmail. Try to chat about this issue with your server provider.

In that case you will get a warning from google in your "spam" message:

"Why is this message in Spam? We've found that lots of messages from home.pl are spam. Learn more"

来源：https://stackoverflow.com/questions/12188334/php-mail-form-sending-to-gmail-spam

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