diff -r 000000000000 -r 7f95f8617b0b vendor/swiftmailer/lib/classes/Swift/Spool.php
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/vendor/swiftmailer/lib/classes/Swift/Spool.php	Sat Sep 24 15:40:41 2011 +0200
@@ -0,0 +1,50 @@
+<?php
+
+/*
+ * This file is part of SwiftMailer.
+ * (c) 2009 Fabien Potencier <fabien.potencier@gmail.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Interface for spools.
+ * @package Swift
+ * @author  Fabien Potencier
+ */
+interface Swift_Spool
+{
+  /**
+   * Starts this Spool mechanism.
+   */
+  public function start();
+
+  /**
+   * Stops this Spool mechanism.
+   */
+  public function stop();
+
+  /**
+   * Tests if this Spool mechanism has started.
+   *
+   * @return boolean
+   */
+  public function isStarted();
+
+  /**
+   * Queues a message.
+   * @param Swift_Mime_Message $message The message to store
+   */
+  public function queueMessage(Swift_Mime_Message $message);
+
+  /**
+   * Sends messages using the given transport instance.
+   *
+   * @param Swift_Transport $transport         A transport instance
+   * @param string[]        &$failedRecipients An array of failures by-reference
+   *
+   * @return int The number of sent emails
+   */
+  public function flushQueue(Swift_Transport $transport, &$failedRecipients = null);
+}