On February 14, 2013, James S. Marston, a member of the Board of Directors of Zix Corporation and chair of the Compensation Committee, notified the company that he intends to retire from the company's board of directors effective on February 28, 2013. Upon Mr. Marston's retirement as a Director, the size of the company's Board of Directors will be reduced to seven members and Dr. Taher A. Elgamal will become the chair of the Compensation Committee.