public function testSend()
{
$mailer = new Mailer();
$message = $mailer->getMessage();
$message->setTo(new Email('*****@*****.**', 'Webiny'))->setBody('Testing')->setSubject('PHPUnit test');
$result = $mailer->send($message);
$this->assertNotFalse($result);
// this test might fail if sendmail is not configured
}