Deleting the Mailbox Store and the Public Folder Store

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Because a front-end server's role is to forward requests to the back-end servers, you may not need Exchange mailboxes or public folders on the front-end servers. The back-end Exchange server manages these stores. If the front-end server is not an SMTP front-end server, you can dismount and delete the public folder and mailbox stores.

If the front-end server is an SMTP front-end server, it is recommended that you delete the public folder store and leave the mailbox store in a mounted state.

To replicate the public folder deletions to other Exchange servers, you should delete the public folder stores before you harden the servers. For detailed steps, see How to Dismount and Delete the Mailbox and Public Folder Stores.