/**
* Saves e-mail message to a file
*
* @param Message $message
* @throws Exception\RuntimeException on not writable target directory or
* on file_put_contents() failure
*/
public function send(Message $message)
{
$options = $this->options;
$filename = call_user_func($options->getCallback(), $this);
$file = $options->getPath() . DIRECTORY_SEPARATOR . $filename;
$email = $message->toString();
if (false === file_put_contents($file, $email)) {
throw new Exception\RuntimeException(sprintf('Unable to write mail to file (directory "%s")', $options->getPath()));
}
$this->lastFile = $file;
}
