Members of a mutual insurance company may vote by proxy dated and executed within three months prior to the meeting at which the proxy is to be used when returned and recorded on the books of the company three days or more before the meeting. A person may not as proxy or otherwise cast more than fifty votes, and an officer, personally or by another, may not ask for, receive, procure to be obtained, or use, a proxy vote. This section does not apply to a proxy committee duly established by the bylaws comprised of no less than three members appointed by the board of directors whose duty is to cast the vote by proxy of members at any duly called annual or special meeting of the mutual insurance company.