nextcloud-server/lib/public/mail/imailer.php

<?php
/**
 * Copyright (c) 2014 Lukas Reschke <lukas@owncloud.com>
 * This file is licensed under the Affero General Public License version 3 or
 * later.
 * See the COPYING-README file.
 */

namespace OCP\Mail;
use OC\Mail\Message;

/**
 * Class IMailer provides some basic functions to create a mail message that can be used in combination with
 * \OC\Mail\Message.
 *
 * Example usage:
 *
 * 	$mailer = \OC::$server->getMailer();
 * 	$message = $mailer->createMessage();
 * 	$message->setSubject('Your Subject');
 * 	$message->setFrom(array('cloud@domain.org' => 'ownCloud Notifier');
 * 	$message->setTo(array('recipient@domain.org' => 'Recipient');
 * 	$message->setBody('The message text');
 * 	$mailer->send($message);
 *
 * This message can then be passed to send() of \OC\Mail\Mailer
 *
 * @package OCP\Mail
 */
interface IMailer {
	/**
	 * Creates a new message object that can be passed to send()
	 *
	 * @return Message
	 */
	public function createMessage();

	/**
	 * Send the specified message. Also sets the from address to the value defined in config.php
	 * if no-one has been passed.
	 *
	 * @param Message $message Message to send
	 * @return string[] Array with failed recipients. Be aware that this depends on the used mail backend and
	 * therefore should be considered
	 * @throws \Exception In case it was not possible to send the message. (for example if an invalid mail address
	 * has been supplied.)
	 */
	public function send(Message $message);
}