private String checkPass(String message) {
		String response;
		String[] temp = message.split(" ");
		if (temp.length >= 2) {
			if (userName == null) {
				response = "-ERR No User was registered";
			} else if (internAccounts.get(userName).equals(temp[1])) {
				// Benutzer hat sich erfolgreich eingeloggt. -> Transaction
				// State
				response = "+OK User " + userName + " logged in";
				currentState = POP3State.Transaction;
			} else {
				response = "-ERR User" + temp[1] + " not found";
			}
		} else {
			response = "-ERR No Username found in Message";
		}
		return response;
	}