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   <xs:complexType name="SPFAuthResultType">
     <xs:all>
       <!-- The checked domain. -->
       <xs:element name="domain" type="xs:string" minOccurs="1"/>
       <!-- The scope of the checked domain. -->
       <xs:element name="scope" type="SPFDomainScope" minOccurs="1"/>
       <!-- The SPF verification result. -->
       <xs:element name="result" type="SPFResultType"
                   minOccurs="1"/>
     </xs:all>
   </xs:complexType>

   <!-- This element contains DKIM and SPF results, uninterpreted
        with respect to DMARC. -->
   <xs:complexType name="AuthResultType">
     <xs:sequence>
       <!-- There may be no DKIM signatures, or multiple DKIM
            signatures. -->
       <xs:element name="dkim" type="DKIMAuthResultType"
         minOccurs="0" maxOccurs="unbounded"/>
       <!-- There will always be at least one SPF result. -->
       <xs:element name="spf" type="SPFAuthResultType" minOccurs="1"
                   maxOccurs="unbounded"/>
     </xs:sequence>
   </xs:complexType>

   <!-- This element contains all the authentication results that
        were evaluated by the receiving system for the given set of
        messages. -->
   <xs:complexType name="RecordType">
     <xs:sequence>
       <xs:element name="row" type="RowType"/>
       <xs:element name="identifiers" type="IdentifierType"/>
       <xs:element name="auth_results" type="AuthResultType"/>
     </xs:sequence>
   </xs:complexType>

   <!-- Parent -->
   <xs:element name="feedback">
     <xs:complexType>
       <xs:sequence>
         <xs:element name="version"
                     type="xs:decimal"/>
         <xs:element name="report_metadata"
                     type="ReportMetadataType"/>
         <xs:element name="policy_published"
                     type="PolicyPublishedType"/>

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