After sending the letter, it returned back.

If you send the letter and it returns back to you with error – it means that the letter was not delivered.


Each letter contains an error code which permits to understand the problem and how it can be solved.


In case if you independently can’t to understand how to fix this mistake, than contact us specifying the the full error message text as well as e-mail address of user to which you wanted to send a message.

In case you did not find your answer contact us