He himself will answer your question. I sent the message to three different email. The result was that the left and right part (highlighted in yellow) are the same, and the average is generated for each individual mile apart (don't know how it is). It turns out that to guess the sender's address to the first message is impossible (due to the average changing parts), but you can write mail where they sent a message, even if you are not registered in the VC.
He has skazal, he said. Don't understand why I couldn't do before. Perhaps the audience needed. For this audience a special thank you.