About the Author

David Elfassy is a Microsoft consultant and trainer, specializing in Microsoft Exchange and Office 365.

David began his career in IT in the early 90s, delivering Microsoft Official Curriculum, and has specialized in Microsoft Exchange Server since 1997. He worked as a project lead on many migrations and implementations of Microsoft infrastructure technologies for governmental and corporate organizations, helping these groups migrate to the new versions of Microsoft Exchange Server. He has also been working closely with Microsoft Learning teams on various marketing and certification projects, particularly on curriculum development for multiple arms of Microsoft Corp. David is a co-owner and senior technical adviser for two Microsoft Gold Certified Partners—Netlogon Technologies (specializing in large-enterprise consulting) and Kalleo (specializing in small-business network management)—overseeing teams of consultants and network technicians.