Zix Corporation Reports provided earnings guidance for the first quarter and full year 2021. For the first quarter, the company forecasts revenue to range between $58.7 million and $59.8 million. The company's revenue forecast for the first quarter implies a 12% to 14% growth rate compared to the same year ago quarter. The company forecasts fully diluted GAAP loss per share (attributable to common stockholders) to be in the range of $0.07 and $0.06. For the year, the company forecasts revenue to range between $244.0 million and $248.5 million, representing an increase of between 12% and 14% compared to fiscal year 2020. The company also expects fully diluted GAAP loss per share (attributable to common stockholders) to range between $0.27 and $0.25.