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Mastering Microsoft Exchange Server 2016, 2nd Edition by Vladimir Meloski, Byron Wright, Brian Svidergol, Clifton Leonard

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Chapter 11Upgrades and Migrations to Exchange Server 2016 or Office 365

Exchange Server is the de facto standard for business email systems. It is rare to find a large business that does not use Exchange Server. Very few businesses upgrade an email system immediately upon the release of a new version. In fact, many stick with older versions as long as they can. However, at some point businesses need to update Exchange Server to a newer version or consider migrating to Office 365.

You need to know how to move from an older version of Exchange Server to Exchange Server 2016 or Office 365. Depending on the software you have used in the past, you may be used to in-place upgrades, where you have an existing version of the software on a computer, run the installer, and end up with the new version of the software. However, there is no in-place upgrade path for organizations migrating to Exchange Server 2016.

This absence may seem to complicate life, but it actually simplifies the migration path from a legacy version of Exchange Server. Using new Exchange servers means that they are more stable, and it will ease interoperability during the migration.

IN THIS CHAPTER, YOU WILL LEARN TO:

  • Choose between an upgrade and a migration
  • Choose between on-premises deployment and Office 365
  • Determine the factors you need to consider before upgrading
  • Understand coexistence with legacy Exchange servers
  • Perform a cross-forest migration

Upgrades, Migrations, Cross-Forest Migrations, and Deployments ...

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