Any person who shall disclose the contents of any telegraphic dispatch or telephone message or communication, or any part thereof, addressed to or which he knows to be intended for another person without the permission of such person, except upon the lawful order of a court, or the judge thereof, with intent to cause injury, damage or disgrace to such other person, or which does in fact cause injury, damage or disgrace to such other person, shall be guilty of a misdemeanor, and upon conviction thereof shall be punished by a fine of not less than Fifty Dollars ($50.00), nor more than Five Hundred Dollars ($500.00), or by imprisonment in the county jail not less than thirty (30) days, nor more than one (1) year, or by both such imprisonment and fine. Provided, that nothing herein shall apply to public officers in the discharge of their duties.