MIME 2018 Proxy Statement

Recommendation of the Board THE BOARD RECOMMENDS THAT YOU VOTE “FOR” THE ELECTION OF EACH OF THE FOLLOWING NOMINEES. Nominees for Election for a Three-Year Term Ending at the 2021 Annual General Meeting Peter Bauer, 44, has served as our Chief Executive Officer and a member of our Board since co-founding Mimecast in 2003. Prior to that, Mr. Bauer was a Managing Director at Idion Solutions Pty in Cape Town, South Africa, a software integration and development company that acquired FAB Technology (Pty), a company that he co-founded in 1997. Mr. Bauer holds a diploma in marketing management from the Institute of Marketing Management South Africa. We believe Mr. Bauer is qualified to serve on our Board because of his extensive knowledge and experience as the chief executive officer of our Company, as well as the industry in which we compete. Jeffrey Lieberman, 44, has served as a member of our Board since September 2012. Mr. Lieberman is currently a Managing Director of the venture capital firm Insight Venture Partners, which he joined in 1998. Prior to joining Insight, Mr. Lieberman was a management consultant at McKinsey & Company, where he focused on strategic and operating issues in the financial services, technology and consumer products industries. Mr. Lieberman currently serves as chairman of the supervisory board of HelloFresh SE (FRA: HFG) (an international meal kit company based in Berlin, Germany). Mr. Lieberman served as a director of Cvent, Inc. (cloud-based event management software and hospitality solutions) from July 2011 through November 2016 and Shutterstock, Inc. (provider of stock photography, stock footage, stock music and editing tools) from June 2007 through December 2016. In addition, Mr. Lieberman currently serves as a director of several private companies. Mr. Lieberman holds a Bachelor of Applied Sciences in systems engineering and a Bachelor of Arts degree in economics from the University of Pennsylvania. We believe Mr. Lieberman is qualified to serve on our Board because of his experience as a seasoned investor in our industry. Hagi Schwartz, 56, has served as a member of our Board since July 2015. Mr. Schwartz is currently a Venture Partner at Western Technology Investment, which he joined in 2011, and a co-founder at Pretty Simple Solutions Inc. (dba TruEquity) (cloud-based capitalization table management), which he co-founded in July 2010. Mr. Schwartz also co-founded Budgeta Inc. (cloud-based financial analysis) in October 2014 where he currently serves as a member of the board. In 2005, Mr. Schwartz founded Magnolia Capital, an investment advisory firm, where he served as Managing Director until December 2010. Previously, Mr. Schwartz was the Chief Financial Officer of several public and private technology companies including HyperRoll, Inc., ATRICA, Inc., Noosh, Inc., Mercury Interactive and Check Point Software Technologies. Mr. Schwartz served on the board of directors of Silicon Graphics International Corp. (SGI) from August 2004 until December 2015, and was SGI’s audit committee financial expert from the time SGI went public in June of 2005 until December 2015. In addition, Mr. Schwartz has served on the board of directors of BigFix, Inc., TUI University and two other private companies. Mr. Schwartz was the chairman of the audit committee of Collective Inc. and CAN Capital. Mr. Schwartz holds a Bachelor of Arts in Economics and Accounting from Bar Ilan University. We believe Mr. Schwartz is qualified to serve on our Board because of his financial expertise, his significant audit and financial reporting knowledge, his seasoned business perspective and his prior experience as an executive and on boards of other prominent technology companies. Directors Continuing in Office Until the 2019 Annual General Meeting Aron Ain, 60, has served as a member of our Board since April 2017. Mr. Ain has served as the Chief Executive Officer and a member of the board of directors of Kronos Incorporated since 2005. He also became the Chairman of the board of directors of Kronos in May 2018 and currently serves on the Kronos compensation committee. Mr. Ain joined Kronos, a leading global provider of workforce management and human capital management cloud solutions, in 1979 and held several leadership roles at the company prior to becoming Chief Executive Officer. He serves on the Board of Trustees of Hamilton College, on the Trustee Advisory Board of Beth Israel 5