On June 1, 2021, the Board of Directors of Zix Corporation appointed Shirley Devlin-Lebow to the position of Chief Accounting Officer of Zix. Devlin-Lebow served as Vice President of Accounting at RealPage Inc. from September 2018 through May 2021. Prior to joining RealPage, she served as Director of Financial Reporting and Technical Accounting at Forterra Inc.