MS Exchange 2013 Edge Transport Server Security Technical Implementation Guide
Rules, Groups, and Values defined within the XCCDF Benchmark
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SRG-APP-000001
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Exchange must limit the Receive connector timeout.
Email system availability depends in part on best practices strategies for setting tuning. This configuration controls the number of idle minutes before the connection is dropped. It works in conju...Rule Medium Severity -
Exchange servers must use approved DoD certificates.
To mitigate the risk of unauthorized access to sensitive information by entities that have been issued certificates by DoD-approved PKIs, all DoD systems (e.g., networks, web servers, and web porta...Rule Medium Severity -
Exchange external Receive connectors must be domain secure-enabled.
The Simple Mail Transfer Protocol (SMTP) connector is used by Exchange to send and receive messages from server to server. Several controls work together to provide security between internal server...Rule Medium Severity -
The Exchange email Diagnostic log level must be set to the lowest level.
Log files help establish a history of activities and can be useful in detecting attack attempts or determining tuning adjustments to improve availability. Diagnostic logging, however, characteristi...Rule Medium Severity -
Exchange must not send Customer Experience reports to Microsoft.
It is detrimental for applications to provide, or install by default, functionality exceeding requirements or mission objectives. These unnecessary capabilities or services are often overlooked and...Rule Medium Severity -
Exchange audit data must be protected against unauthorized access for deletion.
Log files help establish a history of activities and can be useful in detecting attack attempts or determining tuning adjustments to improve availability. Audit log content must always be considere...Rule Medium Severity -
Exchange Outbound Connection Timeout must be 10 minutes or less.
Email system availability depends in part on best practice strategies for setting tuning configurations. This configuration controls the number of idle minutes before the connection is dropped. It ...Rule Medium Severity -
Exchange Send connectors delivery retries must be controlled.
This setting controls the rate at which delivery attempts from the home domain are retried and user notifications are issued and notes the expiration time when the message will be discarded. If ...Rule Low Severity -
Exchange Receive connector Maximum Hop Count must be 60.
Email system availability depends in part on best practice strategies for setting tuning configurations. This setting controls the maximum number of hops (email servers traversed) a message may tak...Rule Medium Severity
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