Extbase - E-Mail / MailMessage

https://wiki.typo3.org/How_to_use_the_Fluid_Standalone_view_to_render_template_based_emails#Usage_in_TYPO3_6.0_and_higher

https://typo3.org/api/typo3cms/class_t_y_p_o3_1_1_c_m_s_1_1_core_1_1_mail_1_1_mail_message.html

	protected function sendTemplateEmail(array $recipient, array $sender, $subject, $templateName, array $variables = array()) {
		/** @var \TYPO3\CMS\Fluid\View\StandaloneView $emailView */
		$emailView = $this->objectManager->get('TYPO3\\CMS\\Fluid\\View\\StandaloneView');
 
		$extbaseFrameworkConfiguration = $this->configurationManager->getConfiguration(
			\TYPO3\CMS\Extbase\Configuration\ConfigurationManagerInterface::CONFIGURATION_TYPE_FRAMEWORK);
		$templateRootPath = \TYPO3\CMS\Core\Utility\GeneralUtility::getFileAbsFileName(
			$extbaseFrameworkConfiguration['view']['templateRootPath']);
		$templatePathAndFilename = $templateRootPath . 'Email/' . $templateName . '.html';
		$emailView->setTemplatePathAndFilename($templatePathAndFilename);
		$emailView->assignMultiple($variables);
		$emailBody = $emailView->render();
 
		/** @var $message \TYPO3\CMS\Core\Mail\MailMessage */
		$message = $this->objectManager->get('TYPO3\\CMS\\Core\\Mail\\MailMessage');
		$message->setTo($recipient)
			->setFrom($sender)
			->setSubject($subject);
 
		// Possible attachments here
		//foreach ($attachments as $attachment) {
		//	$message->attach(\Swift_Attachment::fromPath($attachment));
		//}
 
		// Plain text example
		$message->setBody($emailBody, 'text/plain');
		// HTML Email
		#$message->setBody($emailBody, 'text/html');
		$message->send();
		//print DebuggerUtility::var_dump( $message );		
		return $message->isSent();
	}