Microsoft Exchange 2019 Edge Server Security Technical Implementation Guide
Rules, Groups, and Values defined within the XCCDF Benchmark
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The Exchange internet receive connector connections count must be set to default.
<VulnDiscussion>Email system availability depends in part on best practice strategies for setting tuning configurations. This configuration c...Rule Medium Severity -
SRG-APP-000247
<GroupDescription></GroupDescription>Group -
Exchange Message size restrictions must be controlled on receive connectors.
<VulnDiscussion>Email system availability depends in part on best practices strategies for setting tuning configurations. For message size re...Rule Medium Severity -
SRG-APP-000261
<GroupDescription></GroupDescription>Group -
Active hyperlinks in messages from non .mil domains must be rendered unclickable.
<VulnDiscussion>Active hyperlinks within an email are susceptible to attacks of malicious software or malware. The hyperlink could lead to a ...Rule Medium Severity -
SRG-APP-000261
<GroupDescription></GroupDescription>Group -
Exchange messages with a blank sender field must be rejected.
<VulnDiscussion>By performing filtering at the perimeter, up to 90 percent of spam, malware, and other undesirable messages are eliminated fr...Rule Medium Severity -
SRG-APP-000261
<GroupDescription></GroupDescription>Group -
Exchange messages with a blank sender field must be filtered.
<VulnDiscussion>By performing filtering at the perimeter, up to 90 percent of spam, malware, and other undesirable messages are eliminated fr...Rule Medium Severity -
SRG-APP-000261
<GroupDescription></GroupDescription>Group -
Exchange filtered messages must be archived.
<VulnDiscussion>By performing filtering at the perimeter, up to 90 percent of spam, malware, and other undesirable messages are eliminated fr...Rule Medium Severity -
SRG-APP-000261
<GroupDescription></GroupDescription>Group -
The Exchange sender filter must block unaccepted domains.
<VulnDiscussion>Spam origination sites and other sources of suspected email-borne malware have the ability to corrupt, compromise, or otherwi...Rule Medium Severity -
SRG-APP-000261
<GroupDescription></GroupDescription>Group -
Exchange nonexistent recipients must not be blocked.
<VulnDiscussion>Spam originators, in an effort to refine mailing lists, sometimes use a technique where they first create fictitious names an...Rule Medium Severity -
SRG-APP-000261
<GroupDescription></GroupDescription>Group -
The Exchange Sender Reputation filter must be enabled.
<VulnDiscussion>By performing filtering at the perimeter, up to 90 percent of spam, malware, and other undesirable messages are eliminated fr...Rule Medium Severity -
SRG-APP-000261
<GroupDescription></GroupDescription>Group -
The Exchange Sender Reputation filter must identify the spam block level.
<VulnDiscussion>By performing filtering at the perimeter, up to 90 percent of spam, malware, and other undesirable messages are eliminated fr...Rule Medium Severity -
SRG-APP-000261
<GroupDescription></GroupDescription>Group
Node 2
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