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MS Exchange 2013 Edge Transport Server Security Technical Implementation Guide

Rules, Groups, and Values defined within the XCCDF Benchmark

  • 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.

    &lt;VulnDiscussion&gt;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.

    &lt;VulnDiscussion&gt;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.

    &lt;VulnDiscussion&gt;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.

    &lt;VulnDiscussion&gt;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.

    &lt;VulnDiscussion&gt;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 Attachment filtering must remove undesirable attachments by file type.

    &lt;VulnDiscussion&gt;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 Spam Evaluation filter must be enabled.

    &lt;VulnDiscussion&gt;By performing filtering at the perimeter, up to 90 percent of spam, malware, and other undesirable messages may be eliminated...
    Rule Medium Severity
  • SRG-APP-000261

    <GroupDescription></GroupDescription>
    Group
  • The Exchange Block List service provider must be identified.

    &lt;VulnDiscussion&gt;Block List filtering is a sanitization process performed on email messages prior to their arrival at the destination mailbox....
    Rule Medium Severity
  • SRG-APP-000261

    <GroupDescription></GroupDescription>
    Group
  • Exchange messages with malformed From address must be rejected.

    &lt;VulnDiscussion&gt;Sender Identification (SID) is an email antispam sanitization process. Sender ID uses DNS MX record lookups to verify the Sim...
    Rule Medium Severity
  • SRG-APP-000261

    <GroupDescription></GroupDescription>
    Group

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