2.1 Set 'Mailbox quotas: Issue warning at' to '1991680'

Information

You can configure this setting to automatically warn mailbox users that their mailbox is approaching its storage limit. To specify the storage limit, select the check box for this capability, and then specify in kilobytes (KB) how much content users can store in their mailboxes before a warning e-mail message is sent to them. You can enter a value between 0 and 2,147,483,647 KB (2.1 terabytes).

Rationale:

If users exceed their mailbox limits without warning, they may miss important messages requiring them to take immediate action to mitigate a security risk.

Solution

To implement the recommended state, execute the following PowerShell cmdlet:

Set-MailboxDatabase 'EXCHANGE01\Mailbox Database' -IssueWarningQuota 1991680KB

See Also

https://workbench.cisecurity.org/files/1512

Item Details

Category: SYSTEM AND COMMUNICATIONS PROTECTION

References: 800-53|SC-6

Plugin: Windows

Control ID: 7a8bd1bf27938515d97bcb3c32d2137ec6dca3b57070bdcc6be013613bbaf6e4