function createSenderSignature($fromEmail, $name, $replyToEmail = NULL, $returnPathDomain = NULL) {

		$body = array();
		$body['fromEmail'] = $fromEmail;
		$body['name'] = $name;
		$body['replyToEmail'] = $replyToEmail;
		$body['returnPathDomain'] = $returnPathDomain;

		return new DynamicResponseModel($this->processRestRequest('POST', '/senders/', $body));
	}