I do not know about this mail me with any matter: because I have a message I can not understand. Please provide the details to me by email that you sent this.
I do not know whether this letter about myself with what matters because I have translated from the text, I can't understand it. Please give details with me through e-mail that you send.
I do not know if this letter about me because I have been with any translation of the message, and then I don't have to be able to understand. Please provide details to me by e-mail that you send.