Miss. Code § 79-1-5
Without obtaining the order or direction of any court or the judge thereof, in vacation, any fiduciary, including those acting as executor, administrator, guardian, agent or trustee, owning corporate stock registered in the name of the fiduciary, as such, or in the name of another for the convenience of the fiduciary, or in the names of more than one fiduciary, whether the corporation issuing such stock is foreign or domestic, may, in addition to the voting rights now vested in such fiduciary, execute and deliver, or cause to be executed and delivered, a proxy or proxies to others for the voting of such corporate stock, and may waive notice of and give consent to any meeting of stockholders of any corporation, regular or special, or a meeting of property owners, or cause such to be done, and may authorize in writing any action which could be taken by stockholders in meeting assembled, where such consent is authorized by statute, charter or certificate of incorporation, or bylaws, or cause such written consent to be given, but subject always to the following limitations:
Miss. Code § 79-1-5