As directed by official mail

You're referring to a formal or official communication, such as a letter or email, that is sent through a postal service or electronic mail system. In that case, I'd be happy to assist you with any questions or concerns you may have about official mail.

What specifically would you like to know about official mail? Are you looking for information on how to send or receive official mail, or perhaps how to handle a specific type of official mail, such as a government document or a legal notice? Let me know and I'll do my best to help!