public static void sendMail(Mail mail) {
		if(mail.sentTo().equals("__ALL_USERS__")) {
			for(String entry : dataDir.list()) {
				if(entry.equals("__ALL_USERS__"))
					continue;

				File box = new File(dataDir, entry);
				if(!box.isDirectory())
					continue;

				int mailIndex = getBoxSize(box);

				File location = new File(box, "" + mailIndex);

				serializeMail(mail, location);
			}
			return;
		}
		File box = getBox(mail.sentTo());

		if(!hasBox(box)) {
			makeBox(box);
		}

		int mailIndex = getBoxSize(box);

		File location = new File(box, "" + mailIndex);

		serializeMail(mail, location);
	}