Ability to use DKIM header in mail with fastnloud/zf2-dkim module.

[renta]

If we need to send letters with DKIM header in ZF, we can use module fastnloud/zf2-dkim

1. You create DKIM keys (see http://dkimcore.org/specification.html).
2. Install fastnloud/zf2-dkim module in your ZF project.
3. Use it with vikey89/EmailZF2 like:

$view = new ViewModel(array(
                'fullname' => 'Vincenzo Provenza',
            ));
$view->setTerminal(true);
$view->setTemplate('Application/view/emails/hello_world');
$this->mailerZF2()->send(array(
    'to' => 'email@domain.it',
    'subject' => 'This is subject',
    'dkimSign' => true
), $view);