EX13-MB-000015 - Exchange auto-forwarding email to remote domains must be disabled or restricted.

Information

Attackers can use automated messages to determine whether a user account is active, in the office, traveling, and so on. An attacker might use this information to conduct future attacks. Verify Automatic Forwards to remote domains are disabled, except for enterprise mail that must be restricted to forward-only to .mil and .gov. domains.

Before enabling this setting, first configure a remote domain.

Solution

Non-Enterprise Mail Fix Text:

Open the Exchange Management Shell and enter the following command:

Set-RemoteDomain -Identity <'IdentityName'> -AutoForwardEnabled $false

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

Enterprise Mail Fix Text:

New-RemoteDomain -Name <NewRemoteDomainName> -DomainName <SMTP Address>

Note: NewRemoteDomainName must either be a .mil or .gov domain.

Set-RemoteDomain -Identity <'RemoteDomainIdentity'> -AutoForwardEnabled $true

Note: The <RemoteDomainIdentity> value must be in quotes.

Item Details

Audit Name: DISA Microsoft Exchange 2013 Mailbox Server STIG v2r3

Category: ACCESS CONTROL

Plugin: Windows

Control ID: 579cf412a60a3477d539b09926bec4065fee84e1602fdbda78106f140df73a9b

Detections

Analytics

EX13-MB-000015 - Exchange auto-forwarding email to remote domains must be disabled or restricted.

Information

Solution

See Also

Item Details