Mail quota settings must not restrict receiving mail.
An XCCDF Rule
Description
<VulnDiscussion>Mail quota settings control the maximum sizes of a user’s mailbox and the system’s response if these limits are exceeded. Mailbox data that is not monitored against a quota increases the risk of mail loss due to filled disk space, which can also render the system unavailable. Failure to allow mail receipt may impede users from receiving mission critical data. </VulnDiscussion><FalsePositives></FalsePositives><FalseNegatives></FalseNegatives><Documentable>false</Documentable><Mitigations></Mitigations><SeverityOverrideGuidance></SeverityOverrideGuidance><PotentialImpacts></PotentialImpacts><ThirdPartyTools></ThirdPartyTools><MitigationControl></MitigationControl><Responsibility></Responsibility><IAControls></IAControls>
- ID
- SV-44011r2_rule
- Severity
- Low
- Updated
Remediation - Manual Procedure
Open the Exchange Management Shell and enter the following command:
Set-MailboxDatabase <'MailboxDatabaseName'> -ProhibitSendReceiveQuota 'Unlimited'
If an alternate value is desired from ProhibitSendReceiveQuota, obtain signoff with risk acceptance and document in the EDSP.