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Why are my PHP `mail()` function emails ending up in the spam folder?

Barbara StreisandOriginal: 2024-12-06 10:04:12415browse

Troubleshoot Mail Function Sending Emails to Spam on PHP

When sending emails via PHP's mail() function, they frequently end up in the spam folder. To resolve this issue, we must understand the underlying problem.

The key to solving this issue lies in the fact that the mail() function does not utilize a well-configured SMTP server. For instance:

$ticketDetail is an array containing pertinent information for transmission.
sendOwnershipEmail('[email&#160;protected]', $ticketDetail);

function sendOwnershipEmail($email, $ticketDetail) {
    $param = new stdClass();
    
    $param->content = &quot;<div>
        <div><b>&quot;.$ticketDetail[0]['ticket_number'].&quot;</b></div><br/>
        <div><img src='&quot;.$ticketDetail[0]['image_path'].&quot;'/></div><br/>
        <div>Ticket with ticket number &quot;.$ticketDetail[0]['ticket_number'].&quot; has been requested for tranfer from <div/>
        <div>&quot;.$ticketDetail[0]['oldDepartment'].&quot; to &quot;.$ticketDetail[0]['newDepartment'].&quot; Department <div/>
      </div>&quot;;
    
    $param->sendTo = $email;
    $param->subject = &quot;Request for Department transfer&quot;;
    
    sendMailFunction($param);
}

function sendMailFunction($param) {
        $to = $param->sendTo;
        $subject = $param->subject;
        $headers = 'MIME-Version: 1.0' . &quot;\r\n&quot;;
        $headers .= 'Content-type: text/html; charset=iso-8859-1' . &quot;\r\n&quot;;
        $headers .= 'From: [email&#160;protected]' . &quot;\r\n&quot;;
        $message = &quot;<html><head>&quot; .
               &quot;<meta http-equiv='Content-Language' content='en-us'>&quot; .
               &quot;<meta http-equiv='Content-Type' content='text/html; charset=windows-1252'>&quot; .
               &quot;</head><body>&quot; .$param->content.       
               &quot;<br><br></body></html>&quot;;
    mail($to, $subject, $message, $headers);
}

Solution

SMTP Server: PHP's mail() function relies upon a server to send emails, which might not be configured appropriately. Using PHPMailer and configuring it to use SMTP authentication in conjunction with a dedicated SMTP server will alleviate this issue.

PHPMailer Library: The PHPMailer library is an open-source PHP library specifically designed for sending emails. It provides various features, including handling SMTP authentication. Integrating PHPMailer with your code will enable you to configure a dedicated SMTP server, which will resolve the issue.

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php for mail using function this issue

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