In all civil actions to recover damages for libel or slander, it shall be sufficient to state generally what the defamatory matter was, and that it was published or spoken of the plaintiff, and to allege any general or special damage caused thereby. As a defense thereto the defendant may deny and offer evidence to disprove the charges made, or he may prove that the matter charged as defamatory was true and, in addition thereto, that it was published or spoken under such circumstances as to render it a privileged communication.
Okla. Stat. tit. 12, § 1444.1