How to send e-mails with SMTP Auth? PHP example

PHP mail() does not usually allow you to use the external SMTP server and it does not support SMTP authentication — required by many a mail servers today, including ours.

To connect to our outgoing SMTP server from a PHP script using SMTP authentication and send an email:

unpack and upload to your server free package called PHPMailer, which can be downloaded here
create a file for sending messages, such as mail.php
include and adjust the following settings accordingly in your script:

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

require 'path/to/PHPMailer/src/Exception.php';  // Be sure to set the correct path
require 'path/to/PHPMailer/src/PHPMailer.php';  // Be sure to set the correct path
require 'path/to/PHPMailer/src/SMTP.php';       // Be sure to set the correct path

// Create an instance; passing `true` enables exceptions
$mail = new PHPMailer(true);

try {
  $mail->SMTPDebug = SMTP::DEBUG_OFF; // To enable debugging, set SMTP::DEBUG_SERVER
  $mail->isSMTP();
  $mail->Host       = 'mail.web-solutions.eu';
  $mail->SMTPAuth   = true;
  $mail->Username   = 'user@domain.tld'; // Enter your email address
  $mail->Password   = 'password';        // Enter your password
  $mail->SMTPSecure = PHPMailer::ENCRYPTION_SMTPS;
  $mail->Port       = 465;

  $mail->setFrom('from@domain.tld', 'From Name');
  $mail->addAddress('to@domain.tld');

  $mail->isHTML(true);
  $mail->Subject = 'Here is the subject';
  $mail->Body    = 'This is the HTML message body in bold!';
  $mail->AltBody = 'This is the body in plain text for non-HTML mail clients';

  $mail->send();
  echo 'Message has been sent';
} catch (Exception $e) {
  echo "Message could not be sent. Mailer Error: {$mail->ErrorInfo}";
}

For more information, see the official documentation.

You will need the following details set: