Exchange 2007 Cut Over Migration to the NEW Office 365

Editor’s Note: In partnership with Microsoft Press, MVPs have been contributing to an ongoing guest series on their official team blog. Today’s article is from Office 365 MVP Kelsey Epps which is the 26th in the series

Exchange 2007 Cut Over Migration to the NEW Office 365

A cut over migration is the simplest way to get all your existing email into Office 365. As the name implies, it’s a cutover from one service to another. Cutover migrations are supported for Exchange 2003, 2007 and 2010; for organizations with fewer than 1000 mailboxes. The setup and process is straight forward and nothing complicated. With any successful migration, some planning and testing of existing infrastructure is invaluable. Make sure that you plan and test the migration prior to trying to implement.


Before we can attempt the migration, we need to know what we are going. Microsoft has done a great job of providing good quality information for administrators to use, to plan the migration to Office 365. I always use the Exchange Deployment Assistant as a guide for all my migrations. This site is up to date and will cover most of all the migrations scenarios to Office 365

  1. Open the Exchange Deployment Assistant site
  1. Once the site is launched, you are presented three options. Since I am doing a simple cutover migration from Exchange Server 2007, I am going to use the Cloud Only option
  1. Click Cloud Only
  1. You are now asked a series of questions on end state goals and existing setup
  1. Answer all the questions

  1. Click the Next arrow
  1. The Exchange Deployment Assistant will generate a step by step guide for you to follow. Make sure to read and understand what you are doing.

Continue reading here for full article.

About the author


Kelsey has been working in IT for the past 15 years, with a focus on Microsoft technologies. He currently works for Hewlett Packard in a group called the Enterprise Microsoft Support Centre, which supports all HP client teams with Microsoft technologies. Kelsey also owns and runs his own consulting company called Concepps Group. Concepps Group focuses on helping businesses make the jump into the Office 365 cloud. Kelsey was recently awarded with the Office 365 MVP, in part for his successful Office 365 Technical Support BLOG.  He spends his free time with his family; wife Joleen and two boys (Carter – 4 and Nolan – 2).  Follow him on Twitter

About MVP Monday

The MVP Monday Series is created by Melissa Travers. In this series we work to provide readers with a guest post from an MVP every Monday. Melissa is a Community Program Manager, formerly known as MVP Lead, for Messaging and Collaboration (Exchange, Lync, Office 365 and SharePoint) and Microsoft Dynamics in the US. She began her career at Microsoft as an Exchange Support Engineer and has been working with the technical community in some capacity for almost a decade. In her spare time she enjoys going to the gym, shopping for handbags, watching period and fantasy dramas, and spending time with her children and miniature Dachshund. Melissa lives in North Carolina and works out of the Microsoft Charlotte office.

Comments (1)

  1. Clint Wills says:

    Helpful article, thanks for sharing this procedures to to migrate from Exchange server to Office 365. I  also test this automate migrator tool from . It is specially designed for administrators who wants to core exist their Exchange server for a while and do the migration batch wise and easily perform switch from an old Exchange to the new Exchange Server 2007 or Office 365 and allows to cross- forest and Intra forest migration.

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