The recording secretary shall be responsible for calling special meetings of the Board upon receiving a request from the Chairperson or a written request by a majority of the Board to call a special meeting. Special meetings shall be called by giving a written notice of said meeting to each Board member; the purpose of the meeting shall be outlined in the written notice. Said notice shall be mailed to the members of the Board and be postmarked at least 48 hours, excluding Saturdays, Sundays, and holidays, prior to the time of the meeting. Special meetings of the Board, as ordered by the Town Board, shall be the only exception to this requirement.