Large Healthcare Organization



Business Challenge:

  • Our client sought to migrate 80,000 users from unsupported Exchange
  • platforms to Exchange Online under HIPAA compliance requirements.
  • Multiple third-party archiving solutions containing mail data added to the complexity of the migration.

e360 Solution:

  • Our team designed a custom solution for enumerating all mailboxes, identifying delegation, creating migration batches, scheduling, cleaning up accounts, licensing, extracting third-party archives, Outlook client reassociation, performing scheduled migrations, and post migration cleanup.


  • All 80,000 mailboxes were migrated to Exchange Online at a peak of 5,000+ per day.
  • The entire organization is now on a supported platform and has consolidated visibility into mail data’s HIPAA compliance with the ability to perform eDiscovery.

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