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Exchange 2010 End of Support Roadmap

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The following has been excerpted from doc.microsoft.com.

This article applies to both Office 365 Enterprise and Microsoft 365 Enterprise.

On October 13, 2020, Exchange Server 2010 will reach end of support. If you haven’t already begun your migration from Exchange 2010 to Office 365 or Exchange 2016, now’s the time to start your planning.

What does end of support mean?
Exchange Server, like almost all Microsoft products, has a support lifecycle during which Microsoft provides new features, bug fixes, security fixes, and so on. This lifecycle typically lasts for 10 years from the date of the product’s initial release, and the end of this lifecycle is known as the product’s end of support. When Exchange 2010 reaches its end of support on October 13, 2020, Microsoft will no longer provide:

  • Technical support for problems that may occur;
  • Bug fixes for issues that are discovered and that may impact the stability and usability of the server;
  • Security fixes for vulnerabilities that are discovered and that may make the server vulnerable to security breaches;
  • Time zone updates.

Your installation of Exchange 2010 will continue to run after this date. However, because of the changes listed above, we strongly recommend that you migrate from Exchange 2010 as soon as possible.

What are my options?
With Exchange 2010 reaching its end of support, this is a great time to explore your options and prepare a migration plan. You can:

  • Migrate fully to Office 365. Migrate mailboxes using cutover, minimal hybrid, or full hybrid migration, then remove on-premises Exchange servers and Active Directory.
  • Migrate your Exchange 2010 servers to Exchange 2016 on your on-premises servers.
  • Recommended: If you can migrate your mailboxes to Office 365 and upgrade your servers by October 13, 2020, use Exchange 2010 to connect to Office 365 and migrate mailboxes. Next, migrate Exchange 2010 to Exchange 2016 and decommission any remaining Exchange 2010 servers.
  • If you can’t complete the mailbox migration and on-premises server upgrade by October 13, 2020, upgrade your on-premises Exchange 2010 servers to Exchange 2016 first, then use Exchange 2016 to connect to Office 365 and migrate mailboxes.

Contact YYCC if you are using this Microsoft product version – we can help you evaluate and upgrade your systems as painlessly as possible.

Information excerpted from < https://docs.microsoft.com/en-us/office365/enterprise/exchange-2010-end-of-support>

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