Anderson Patricio is a consultant for Microsoft technologies. He works with Exchange Server, ISA Sever and Active Directory deployments at a Microsoft Gold Partner in Toronto, Canada. In the Technet Brasil community, he contributes news, articles and web casts.

Henrik Walther is a Microsoft Exchange MVP, MCA: Messaging (Exchange Ranger) Apprentice, MCITP: Exchange 2007, MCTS: Windows 2008, and MCSE: M+S that works as a Technology Architect for Trifork Infrastructure Consulting A/S, a Microsoft Gold Partner based in Denmark. You can visit his website at: www.exchange-faq.dk (danish).

Marc Grote is an MCSA/MCSE Messaging & Security, an MCTS/MCITP and a Microsoft Certified Trainer and MCLC. He is a freelance IT Trainer and Consultant in the north of Germany near Hanover. He works with Invenate GmbH on special projects. You can find more information about Invenate at ttp://www.invenate.de. He specializes in ISA Server, Exchange, Security for Windows 2000/2003 and Windows Server 2008 designs, migrations and implementations, and Citrix Metaframe implementations. His efforts have earned him recognition as a Microsoft MVP for ISA Server since 2004. You can visit his homepage at http://www.it-training-grote.de.

Markus Klein is a MCSA/MCSE Messaging & Security and Microsoft Certified Trainer. From the beginning of 2009, he has started work as an International System Administrator for www.krohne.com and is a part-time freelance trainer. He is specialized in Active Directory, Exchange, Security, ISA Server and Clustering on Windows 2000 and Windows Server 2003 designs, migrations and implementations. Markus is a graduate of economical informatics from the University of Applied Science in Osnabrueck/Germany.

Nathan Winters is a Unified Communications Consultant for Dimension Data. Midway through 2006 Nathan founded the Microsoft Messaging and Mobility User Group UK. In April 2007 Nathan was awarded an MVP (Exchange Server) for his work with MMMUG and contributions to the Mark Minasi Forum. Nathan is a regular contributor to the MSExchange.org website.

You can contact Nathan at Nathan@clarinathan.co.uk or through his blog.

Neil is a Principal Consultant with Silversands (http://www.silversands.co.uk), a UK-based Microsoft Gold Partner and is responsible for solution design, implementation and support for major clients across Europe. He has been in the IT industry since 1987 and has specialized in messaging since 1995, having worked with Exchange since v4.0 days. He is also an Exchange MVP and spends some of his spare time helping others in various Exchange mailing lists, the public Exchange newsgroups and also contributes to the MSExchange Blog over at http://www.msexchangeblog.com

You can contact Neil at neil.hobson @ silversands.co.uk. However, please direct all general support questions to the MSExchange.org forums.

Rui Silva is a Senior Consultant, working mainly with Microsoft Technologies at Unisys Portugal. He is MCDBA / MCSA / MCSE:Messaging / MCSE:Security certified and has been recognized as a Microsoft MVP for Exchange Server, due to his contributions to several technical forums. Rui spends some of his (little) free time updating the Exchange dedicated blogs http://blogs.msexchange.org/silva, http://msmvps.com/ehlo (in English) and http://ehlo.blogspot.com (in Portuguese). But because he has a passion for writing, he authors some technical articles, as seen at this site, and he has a permanent work-in-progress project for a Portuguese Exchange Server book.

Currently working as Project Manager and Systems Consultant, heading and consulting on Exchange and NT/Windows 2000 based migrations and deployments for large companies such as Checkpoint, Comverse, Smarteam, Nice, Aladdin and leading Israeli Banks, Also involved in writing scripts and custom solutions for clients based on ADSI, CDO and Visual Basic and teaching Windows 2000 and Exchange 2000 in MSCE colleges and lecturing in Microsoft User Groups.

Lee Derbyshire BSc (Hons), MVP MCSE is a full-time IT Professional living in the UK. You can visit his home page at www.leederbyshire.com

Rodney Buike is a Microsoft MVP and has his MCSE certification on Windows 2000 and 2003. He is employed as technology consultant in Winnipeg, Manitoba, Canada working primarily with Active Directory, Exchange and Virtual Server 2005; and is the publisher of TheLazyadmin.com.