config.neon

nette:
	mailer:
		smtp:
			email: smtp.live.com
			username: user
			password: heslo
			port: 587
			secure: tls

services:

	-   \App\model\services\EmailApplicant(@nette.mailer)

	nette.mailer:
		class: Nette\Mail\SmtpMailer

gistfile1.php

class EmailApplicant extends Object
{

    /**
     * @var \Nette\Mail\SmtpMailer
     */
    private $mailer;

    public function __construct(SmtpMailer $mailer)
    {
        $this->mailer = $mailer;
        Debugger::barDump($mailer);
    }
}