Problem solwed ...
Problem solwed. If you still getting errors with site or API - let me know.

Our site suffers from DDoS attack since today 9:40. ...
Our site suffers from DDoS attack since today 9:40. Our hosting company noe tries to defend us, but no effect yet. If your can see this message - your are lucky man. Stay tuned.

Now released delivery confirmation for paper letters. ...
Now released delivery confirmation for paper letters. If recipient will send special formed sms (text) message, our server will process it, and will notify (by email) the sender of the letter about...

Few days ago the number of registered users of the ...
Few days ago the number of registered users of the service had jumped over 14,000