Breaking Down Large Source Public Folders

Prior to migrating your Public Folders we recommend doing the following:

  • Any single source folders larger then 20 GB should be broken down into smaller folders.
  • When migrating to Exchange Online (Microsoft 365), ensure that all of your Public Folders are within the stated limits for public folders​
  • Purge old or unused data. This will save on your migration costs, and also save some space in the target environment.

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