<xs:element name="SystemVersionQueryResponse">
    <xs:annotation>
        <xs:documentation>Responnse to a query for the receiving system version information.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
        <xs:choice>
            <xs:element name="QueryResults">
                <xs:annotation>
                    <xs:documentation>
                    </xs:documentation>
                </xs:annotation>
                <xs:complexType>
                    <xs:sequence>
                        <xs:element name="SoftwareStatus" type="mailxml:submittingSoftwareType" />
                        <xs:element name="ReturnInfo" type="mailxml:basicReturnInfoType" minOccurs="0" />
                    </xs:sequence>
                </xs:complexType>
            </xs:element>
            <xs:element ref="mailxml:QueryError" />
        </xs:choice>
    </xs:complexType>
</xs:element>