<?php
/**
* 240-transport-failover.php
*/
require_once '../vendor/autoload.php';
require_once './config.php';
// POINT of this sample
$transport1 = Swift_SmtpTransport::newInstance(SMTP_HOST, SMTP_PORT);
$transport2 = Swift_SmtpTransport::newInstance(SMTP_HOST2, SMTP_PORT2);
$transport = Swift_FailoverTransport::newInstance([$transport1, $transport2]);
$mailer = Swift_Mailer::newInstance($transport);
$message = Swift_Message::newInstance();
$message->setFrom(MAIL_FROM)->setSubject('FailoverTransport sample')->setBody('This is a mail.');
$recipients = [MAIL_TO, MAIL_TO2];
$total = 0;
foreach ($recipients as $recipient) {
$message->setTo($recipient);
$result = $mailer->send($message);
$total += $result;
}