Contact Us Form sender PHP code for sending email at particular email id using a SMTP settings.

Send a Mail using PHP Mailer

<?php

//MAKE SURE THAT THE PHP MAILER FOLDER IS UNDER THE INCLUDE PATH - check phpinfo and ensure that folder is in include_path using php.ini file settings
//ini_set("include_path", './home/rendertechstudio/public_html/quote/phpmailer');

use PHPMailer\PHPMailer\PHPMailer;
use PHPMailer\PHPMailer\Exception;

require 'src/Exception.php';
require 'src/PHPMailer.php';
require 'src/SMTP.php';

//JSON replier function from https://gist.github.com/james2doyle/33794328675a6c88edd6
function json_response($message = null, $code = 200)
{
    // clear the old headers
    header_remove();
    // set the actual code
    http_response_code($code);
    // set the header to make sure cache is forced
    header("Cache-Control: no-transform,public,max-age=300,s-maxage=900");
    // treat this as json
    header('Content-Type: application/json');
    $status = array(
        200 => '200 OK',
        400 => '400 Bad Request',
        422 => 'Unprocessable Entity',
        500 => '500 Internal Server Error'
        );
    // ok, validation error, or failure
    header('Status: '.$status[$code]);
    // return the encoded json
    return json_encode(array(
        'status' => $code < 300, // success or not?
        'message' => $message
        ));
}

// for reading the incoming JSON POST body
$data = json_decode(file_get_contents('php://input'), true);

if($data["contact-name"]) {
    $mailbody = $data["contact-name"] . ' from '. $data["company"]. ' has send a quotation request. Please connect to him on ' .$data["email"];
} else if($_POST["contact-name"]) {
    $mailbody = $_POST["contact-name"] . ' from '. $_POST["company"]. ' has send a quotation request. Please connect to him on ' .$_POST["email"];
}else {
    echo 'Incoming request is invalid';
    return;
}

$emailFrom = 'donotreply@example.com';
$emailFromName = 'Example Text';

$emailTo = 'example@example.com';
$emailToName = 'example text';

$smtpUsername = 'donotreply@example.com';
$smtpPassword = 'skexample8';

$mail = new PHPMailer;
$mail->isSMTP(); 
$mail->SMTPDebug = 0; // 0 = off (for production use) - 1 = client messages - 2 = client and server messages
$mail->Host = "mail.example.com"; // use $mail->Host = gethostbyname('smtp.gmail.com'); // if your network does not support SMTP over IPv6
$mail->Port = 26; // TLS only
$mail->SMTPSecure = false;
$mail->SMTPAutoTLS = false;
//$mail->SMTPSecure = 'tls'; // ssl is depracated
$mail->SMTPAuth = true;
$mail->Username = $smtpUsername;
$mail->Password = $smtpPassword;
$mail->setFrom($emailFrom, $emailFromName);
$mail->addAddress($emailTo, $emailToName);
$mail->Subject = 'Mail from Quotation Landing Page';
$mail->msgHTML($mailbody); 
$mail->AltBody = $mailbody;

if(!$mail->send()){
    $message = "Mailer Error: " . $mail->ErrorInfo;
    echo json_response($message, 400);
}else{
    $message = 'Thank You for contacting us, We will contact you back soon.';
    echo json_response($message, 200);
}
?>