Okla. Stat. tit. 12, § 12-1444.1: Pleading - Proof - Defenses

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.