About the Reviewers

Jeff Guillet is an Exchange 2010 Microsoft Certified Master and MVP. He works as a senior consultant for ExtraTeam, a Microsoft Gold Partner, in Pleasanton, CA. Jeff holds MCITP:Enterprise Administrator, MCITP:Enterprise Messaging Administrator, MCITP:Lync Administrator, and CISSP certifications.

Jeff is the co-author of Windows Server 2008 Hyper-V Unleashed. He was the technical editor of the books Lync Server 2010 Unleashed and Windows Server 2008 Unleashed, and also a contributing author of several books including Exchange Server 2010 Unleashed, Windows Server 2008 R2 Unleashed, and Exchange Server 2007 Unleashed, all books from Sams Publishing.

He also publishes the well-known EXPTA {blog}, a technical blog with over one million readers worldwide. Please visit http://www.expta.com for the latest Exchange news.

Laercio Simoes has 20 years' experience in Software Development. A PhD in Electrical Engineering, he graduated from the Singularity University. He has won multiple awards in several entrepreneur contests.

He runs a startup company (http://www.hpcbrasil.com/) and is currently building a medical platform data platform (http://www.flextracker.com.br/).

This is his first book as a reviewer.

Henrik Walther is a consultant working with Microsoft Consulting Service (MCS) at Microsoft Denmark. Here his primary working areas is Exchange on-premise and Office 365 solutions for the largest customers in Denmark. He has been in the IT industry for more than 17 years primarily working with Microsoft BackOffice solutions such as Exchange Server. Henrik is usually involved in all phases of the project. More specifically the envisioning, planning, and design phases and often also the deployment and migration phases.

Prior to joining Microsoft, Henrik held the Exchange MVP for eight years and back in 2007, he became a Microsoft Certified Master: Exchange.

In addition to being a consultant at Microsoft, Henrik is a respected Technical Writer. Among other things, he's been on the team that did most of the Exchange 2007 related white papers for Microsoft IT Showcase as well as on the team that created questions for the Exchange 2010 MCP exams. He is currently contracted by Microsoft TechNet Exchange Product group to write content for the core Exchange documentation and the TechNet Wiki.