Precisely which part of the problem do you think I don't understand?
Your intentions are noble in trying to make the service accessible to everyone but PPRuNe can do nothing about this - it is everyone.net that you need to talk to. I have no control over their server. In everyonet.net's scheme of things we're tiny and insignificant.
Where do you think the money would come from in order that we could offer a guarantee that it would be available worldwide for the forseeable future?
You seem happy with yahoo, which is great. If you're not, let me know and you can have a free email account with us directly, which *should* be available worldwide (no guarantees though).