PHP Mailer Form - Marked as Spam

StackOverflow https://stackoverflow.com/questions/15568731

  •  29-03-2022
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Question

I've built a mailer form in php that allows me to just type in an email address and it fires an email directly to the address entered, this is to save a stupid amount of time due to the fact that i've got to send thousands. The php is below:

<?php
{
$to = $_POST['contactEmail'];
$subject = "UK Exporters - Buyers of Commercial Vehicles";
$headers = "Content-type:text/html;charset=iso-8859-1";

$message = 
"
<html><head></head><body style='font-family: arial;'>      
<span style='font-weight: bold;'>To whom it may concern,</span><br /><br />

At UK Exporters, we are buyers of Scanias, Volvos, Mercedes, Renaults, DAFs.<br /> 
Runners and non-runners.<br />
4 X 2’s, 8 x 4’s, 6 x 2’s.<br /><br />

We need your old stock for export orders. Top prices paid. For export orders. If you     have any items that you believe we would be interested in purchasing then please reply and let me know. Thank you for reading this email, we hope to hear from you soon.<br /><br />

Kind regards,<br /><br />

Sam<br />
UK Exporters<br /><br />
<img src='http://uk-exporters.co.uk/emailer/card.jpg' />
</body>
</html>"
; 

mail($to, $subject, $message, $headers);
echo "Another bites the dust! :D<br /><a href='http://uk-exporters.co.uk/emailer'>Send     another</a>"?>
<?php  }
?>

I'm not a php expert, so any help would be appreciated, i've also list the reasons why it's being marked as spam:

Content analysis details:   (5.5 points, 5.0 required)

pts rule name              description
---- ---------------------- --------------------------------------------------
-0.7 RCVD_IN_DNSWL_LOW      RBL: Sender listed at http://www.dnswl.org/, low
                        trust
                        [82.197.130.210 listed in list.dnswl.org]
 0.0 HTML_MESSAGE           BODY: HTML included in message
 1.8 HTML_IMAGE_ONLY_08     BODY: HTML: images with 400-800 bytes of words
 1.1 MIME_HTML_ONLY         BODY: Message only has text/html MIME parts
 1.3 RDNS_NONE              Delivered to internal network by a host with no rDNS
 2.0 MIME_HEADER_CTYPE_ONLY 'Content-Type' found without required MIME
                            headers

The email would send perfectly well, until I tried sending an image along with it, any ideas guys?

Was it helpful?

Solution

Your analysis details are clear enough. You need to make your header more suitable to your message, by adding the one below:

 #For 'Content-Type' found without required IME headers
 $headers .= "MIME-Version: 1.0" . "\r\n";

Also seems you missing FROM Address in header

 $headers  .= 'From: from@email.com' . "\r\n" .

For more on mail headers do read this.

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