Category: Migrations
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How to fix Exchange Online throttling during migrations (Increase EWS throttling policy)
When utilizing third-party migration tools like BitTitan MigrationWiz or Avepoint Fly to migrate mailboxes to or from Exchange Online it’s pretty common that the EWS (Exchange Web Services) APIs are throttled. If you get error messages like “HTTP 429 (“Too Many Requests”) or “Server too busy” it’s likely that the API is throttled. There is…