The Mailbox Stores must mount at startup.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-33597	Exch-1-309	SV-44017r1_rule	ECSC-1	Low

Description
Administrator responsibilities include the ability to react to unplanned maintenance tasks or emergency situations that may require Mailbox data manipulation. Occasionally, there may be a need to start the server with 'unmounted' data stores, if manual maintenance is being performed on them. Failure to uncheck the 'do not mount on startup' condition will result in unavailability of mail services. Correct configuration of this control will prevent unplanned outages due to being enabled. On occasions when it is needed, care should be taken in process steps to clear the check box upon task completion, so that mail stores are available to users (unmounted mailbox stores are not available to users).

Description

Administrator responsibilities include the ability to react to unplanned maintenance tasks or emergency situations that may require Mailbox data manipulation. Occasionally, there may be a need to start the server with 'unmounted' data stores, if manual maintenance is being performed on them. Failure to uncheck the 'do not mount on startup' condition will result in unavailability of mail services. Correct configuration of this control will prevent unplanned outages due to being enabled. On occasions when it is needed, care should be taken in process steps to clear the check box upon task completion, so that mail stores are available to users (unmounted mailbox stores are not available to users).

STIG	Date
Exchange 2010 Mailbox Server STIG	2017-07-05

Details

Check Text ( C-41704r1_chk )
Open the Exchange Management Shell and enter the following command: Get-MailboxDatabase \| Select Name, Identity, MountAtStartup If the value of 'MountAtStartup' is not set to 'True', this is a finding.

Fix Text (F-37489r1_fix)
Open the Exchange Management Shell and enter the following command: Set-MailboxDatabase -Identity <'MailboxName'> -MountAtStartup $true