Mailer

composer require sonsofphp/mailer

<?php

use SonsOfPHP\Component\Mailer\Message;
use SonsOfPHP\Component\Mailer\Mailer;
use SonsOfPHP\Component\Mailer\Transport\NullTransport;

$message = new Message();
$message
    ->setTo('joshua@sonsofphp.com')
    ->setFrom('joshua@sonsofphp.com')
    ->setSubject('Test Subject')
    ->setBody($body)
;

$mailer = new Mailer(new NullTransport());
$mailer->send($message);