A publication or communication shall not be held or deemed malicious when made in any legislative or judicial proceeding or in any other proceeding authorized by law. A publication or communication shall not be presumed to be malicious when made:
First.— In the proper discharge of an official duty.
Second.— In a fair and true report of a judicial, legislative, official or other proceeding, or of anything said in the course thereof.
Third.— To a Commonwealth official upon probable cause with the intention of serving the public interest or of securing the redress of a private wrong.
History —Feb. 19, 1902, p. 214, § 4.