받은 편지함 - Libor

Hi Libor

I am sending you a message because I need help from Russian speakers; could you help me improve this translation please?
As one of the English experts at Cucumis, it is my job to make sure English texts are correct in terms of grammar etc. After that, I set a poll to see if the translation has the same meaning as the original. This translation is a difficult one and it is costing us a lot of time. Because I don't speak Russian, I really need all the help I can get from people who do.
Can you help?
Thanks!