Sender reputation filter must be enabled.

From Exchange 2010 Edge Transport Server STIG

Associated with IA controls: ECSC-1

SV-44059r1_rule Sender reputation filter must be enabled.

Vulnerability discussion

By performing filtering at the perimeter, up to 90% of SPAM, malware, and other undesirable messages are eliminated from the message stream rather than admitting them into the Mail server environment. Sender reputation is anti-SPAM functionality that blocks messages according to many characteristics of the sender. Sender reputation relies on persisted data about the sender to determine what action, if any, to take on an inbound message. This setting enables the sender reputation function.

Check content

Open the Exchange Management Shell and enter the following command: Get-SenderReputationConfig | Select Enabled If the value of 'Enabled' is not set to 'True', this is a finding.

Fix text

Open the Exchange Management Shell and enter the following command: Set-SenderReputationConfig -Enabled $true

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