Detections
Analytics

EX16-MB-000270 - Exchange Mailboxes must be retained until backups are complete.

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Information

Backup and recovery procedures are an important part of overall system availability and integrity. Complete backups reduce the chance of accidental deletion of important information and make it possible to have complete recoveries.

It is not uncommon for users to receive and delete messages in the scope of a single backup cycle. This setting ensures at least one backup has been run on the mailbox store before the message physically disappears. By enabling this setting, all messages written to recipients who have accounts on this store will reside in backups even if they have been deleted by the user before the backup has run.

Solution

Open the Exchange Management Shell and enter the following command:

Set-MailboxDatabase -Identity <'IdentityName'> -RetainDeletedItemsUntilBackup $true

Note: The <IdentityName> value must be in single quotes.

See Also

https://dl.dod.cyber.mil/wp-content/uploads/stigs/zip/U_MS_Exchange_2016_Y22M07_STIG.zip

Item Details

References: CAT|II, CCI|CCI-001199, Rule-ID|SV-228376r612748_rule, STIG-ID|EX16-MB-000270, STIG-Legacy|SV-95377, STIG-Legacy|V-80667, Vuln-ID|V-228376

Plugin: Windows

Control ID: 64bdf2536c159dd1775adbf007c3e4e1ec663dc53325dad8541f0bd86cd2ddd2