To each person who registers at the office of the board of election commissioners or at any place designated by such board under Section 6-51 of this Article, after the first registration under this Article, the board shall send by mail, and electronic mail if the registrant has provided the board of election committees with an e-mail address, a notice setting forth the elector’s name and address as it appears on the registration record card, and shall request him in case of any error to present the notice on or before the tenth day next ensuing at the office of the Board of Election Commissioners in order to secure the correction of the error. Such notice shall contain on the outside a request for the postmaster to return it within five days if it cannot be delivered to the addressee at the address given thereon. Upon the return by the post office of any such notice which it has been unable to deliver at the given address because the addressee cannot be found there, a notice shall be at once sent through the United States mail to such person at the address appearing upon his registration record card requiring him to appear before the Board of Election Commissioners at a time and place specified in the notice and show cause why his name should not be cancelled from the register. Thereafter, proceedings shall be, as nearly as may be, in conformity with those established by Section 6-52 of this Article with respect to applications to complete registration. Such notice may be sent at any time within thirty days after the registration of any person, but such notice shall be sent within five days after the last day of registration before any election, to all persons who have registered since the last preceding election, and to whom no such notice has theretofore been sent; and where the addressee cannot be found, notice requiring such person to appear before the board of election commissioners shall specify dates for hearing before the election not later than those prescribed by Section 6-45 of this Article.