Simple GPG encryption test

email.yml

---
Only:
  environment: 'dev'
---
GPGMailer:
  options:
    - homedir: '/var/www/public/assets/'
      relative_homedir: 'assets/'
      debug: false
EmailPage_Controller:
  encryptKey: 'frank+to@silverstripe.com'
  signKey: 'frank+from@silverstripe.com'
  signKeyPassPhrase: 'K3yPa55Phr4s3'

EmailPage.php

<?php

class EmailPage extends Page {
}

class EmailPage_Controller extends Page_Controller {

	private static $allowed_actions = array(
		'Form'
	);

	public function Form() {

		$currentTest = date('Y-m-d h:i:s');

		$fields = FieldList::create(
			HeaderField::create('EmailHeader', 'Contact Us', 3),
			CheckboxField::create('Encrypt', 'Encrypt this email'),
			TextareaField::create('Body', 'Email content', 'Email content here ' . $currentTest)
		);

		$actions = FieldList::create(
			FormAction::create('send', 'Send')
		);

		$required = RequiredFields::create(
			'Body'
		);

		return Form::create($this, 'Form', $fields, $actions, $required);
	}

	public function send(array $data, Form $form) {

		// If encrypting email change subject and Mailer
		$encrypt = isset($data['Encrypt']);
		$subject = ($encrypt) ? 'Encrypted email' : 'Non encrypted email';

		// Create email, subject line is NOT encrypted
		$email = new Email(
			'frank+from@silverstripe.com',
			'frank+to@silverstripe.com',
			$subject,
			$data['Body']
		);

		// Set up encryption mailer
		if($encrypt) {
			$mailer = new GPGMailer(
				$this->config()->encryptKey,
				$this->config()->signKey,
				$this->config()->signKeyPassPhrase
			);
			$email->set_mailer($mailer);
		}

		$result = $email->sendPlain();
		$message = ($result) ? 'Email was sent' : 'Email was NOT sent';

		return array(
			'Content' => "<h2>$message</h2>",
			'Form' => $this->Form
		);

	}
}