The lawyer disclaimers serve a few purposes. For one, the attorney-client privilege can be blown if information is shared with outsiders. Inadvertent, accidental disclosures don't count. So, the "unintended recipient" language protects the attorney-client privilege. Next, lawyer ethics rules may be interpreted to create an attorney-client relationship if the "client" could reasonably believe that the attorney is acting on his behalf. The "I'm not your attorney" language is intended to avoid having someone claim you're his attorney merely because you explained some generic legal concept. Additional disclosures are required by law. For example, the IRS published Circular 230, which requires certain disclaimers be "prominently displayed" on all communications from attorneys who practice before the IRS. (i.e. me.)

Of course, I don't represent any of you, this isn't legal advice, I really didn't intend to send this to you, or anyone else, and you can't rely on anything I've ever said to avoid any tax penalty. G'Night.