Texas Government Code - GOV'T § 552.137. Confidentiality of Certain E-Mail Addresses

(1) provided to a governmental body by a person who has a contractual relationship with the governmental body or by the contractor's agent;

(2) provided to a governmental body by a vendor who seeks to contract with the governmental body or by the vendor's agent;

(3) contained in a response to a request for bids or proposals, contained in a response to similar invitations soliciting offers or information relating to a potential contract, or provided to a governmental body in the course of negotiating the terms of a contract or potential contract;

(4) provided to a governmental body on a letterhead, coversheet, printed document, or other document made available to the public; or

(5) provided to a governmental body for the purpose of providing public comment on or receiving notices related to an application for a license as defined by Section 2001.003(2) of this code, or receiving orders or decisions from a governmental body.