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XCCDF
Microsoft Exchange 2016 Edge Transport Server Security Technical Implementation Guide
SRG-APP-000261
The Exchange Simple Mail Transfer Protocol (SMTP) Sender filter must be enabled.
The Exchange Simple Mail Transfer Protocol (SMTP) Sender filter must be enabled.
An XCCDF Rule
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The Exchange Simple Mail Transfer Protocol (SMTP) Sender filter must be enabled.
Medium Severity
<VulnDiscussion>Email system availability depends in part on best practices strategies for setting tuning configurations. Careful tuning reduces the risk that system or network congestion will contribute to availability impacts. Filters that govern inbound email evaluation can significantly reduce spam, phishing, and spoofed emails. Filters for messages from blank senders, known spammers, or zero-day attack modifications must be enabled to be effective. Failure to enable the filter will result in no action taken. This setting should always be enabled.</VulnDiscussion><FalsePositives></FalsePositives><FalseNegatives></FalseNegatives><Documentable>false</Documentable><Mitigations></Mitigations><SeverityOverrideGuidance></SeverityOverrideGuidance><PotentialImpacts></PotentialImpacts><ThirdPartyTools></ThirdPartyTools><MitigationControl></MitigationControl><Responsibility></Responsibility><IAControls></IAControls>