Following the changes for the scenery database, mpmap03.flightgear.org will be unavailable until further notice.
Calls to mpmap03.flightgear.org will now land at http://mpmap04.flightgear.org/. Please note that mpmap04 does not have a valid SSL certificate. Either ignore the warning or use unencrypted http.
I'll do my best to get mpmap03 back to live.
Torsten