Tex. Business & Commerce Code § 321.051: TRANSMISSION OF CERTAIN COMMERCIAL ELECTRONIC MAIL MESSAGES PROHIBITED.

(a) In this section, "Internet domain name" means a globally unique, hierarchical reference to an Internet host or service that is:

(1) assigned through a centralized Internet naming authority; and

(2) composed of a series of character strings separated by periods, with the right-most string specifying the top of the hierarchy.

(b) A person may not intentionally transmit a commercial electronic mail message that:

(1) is an unsolicited commercial electronic mail message and falsifies the electronic mail transmission or routing information;

(2) contains false, deceptive, or misleading information in the subject line; or

(3) uses another person's Internet domain name without the other person's consent.

Added by Acts 2007, 80th Leg., R.S., Ch. 885 (H.B. 2278), Sec. 2.01, eff. April 1, 2009.