OpenText Mergers and Acquisitions Presentation Deck

Zix Expands OpenText Distribution Capabilities Zix MSP Partners(1) 3,849 4,459 4,734 2017 2018 2019 opentext TM 5,003 5,644 2020 2021 Significant cross-sell and upsell opportunities Zix ~5,600 MSPs 1. Source: Zix Investor Presentation, August 2021 and Zix Financial Filings. 2. Numbers do not add due to estimated overlap in Zix and OpenText MSPs. Open Text ~17,000 MSPs ~21,600(²) Distinct MSPs OpenText ©2021 All rights reserved 9

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