Disable EWS throttling in Office 365 – Exchange Online
A migration is planned to Office 365, because Exchange 2010 end of life support is coming. It takes some time to move the mailboxes to Exchange Online. To speed it up, I recommend to disable EWS throttling in Office 365 – Exchange Online. This way the migration will go faster.
Disable EWS throttling in Office 365 before migrating the test users and the Pilot users. This way you are able to time the migration with a selected group of users. After that, you have an estimate of how long the migration will take. In this article, you will learn how to disable EWS throttling in Office 365.
How to disable EWS throttling in Office 365?
In the past we created a support request asking Microsoft to disable the throttling temporarily. This is changed, from now on you can do it yourself. Isn’t it better that they automate the process for us?
Log in Office 365 admin page with your admin credentials.
Click Customize navigation in the feature pane.
Select the checkbox Select All and click Save.
Click Support and follow with New service requests.
In the search field, search for throttling. Select Increase EWS Throttling Policy from the list and press Enter.
Click Run Tests.
Diagnostic tests are running.
Select the duration in days. The options are 30 days, 60 days, and 90 days. Check the checkbox to acknowledge the change and click Update Settings.
You will get a message showing Success. The update to Exchange Web Services (EWS) throttling policy has been initiated. The update will complete within 15 minutes.
Verify that throttling is disabled in Office 365
After 15 minutes run the test again to check if the changes are applied.
This time it’s showing a different message. You can see that Exchange Web Services (EWS) is currently not throttled.
Did this help you to disable EWS throttling policy in Exchange Online? I hope it did and that the mailbox migration speed to Office 365 went fast. Happy migrating!
Keep on reading: Move mailbox to Exchange Online with PowerShell »
Conclusion
In this article, you learned how to disable Exchange Web Services (EWS) throttling in Office 365 – Exchange Online. Disable the throttling policy within the Office 365 admin page. Wait for 15 minutes and test again to make sure that throttling is disabled. If EWS is not getting disabled, contact Microsoft Office 365 team.
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