Section 11. All notices required by this act may be served in the manner following, anything herein contained to the contrary notwithstanding: Upon the taxable personally, or upon an adult person residing upon the property assessed or by posting upon the property assessed when it is vacant or unoccupied, or by notice mailed to the last known address of the taxable.
No defect in service of any such notice shall be sufficient ground for setting any assessment aside, but, upon proof thereof being made, the taxable person or taxing district shall have the right to a hearing before said board relative to said assessment, with the same right of appeal from its decision as provided in section eight of this act.
(11 amended June 25, 1968, P.L.258, No.122)