Add Exception To URL Rewrite And IIS Server - exception

Question

I have my first IIS Server set up and running. And I have successfully configured the URL Rewrite add on. It works perfectly for all incoming requests. How ever I want to exclude one additional website that runs on the same IIS server. Can someone teach me how to do this?
web.config
<?xml version="1.0" encoding="UTF-8"?>
<configuration>
<system.webServer>
<rewrite>
<rules>
<clear />
<rule name="ReverseProxyInboundRule1" stopProcessing="true">
<match url="^(.*)" />
<conditions logicalGrouping="MatchAll" trackAllCaptures="false" />
<serverVariables>
<set name="HTTP_REFERER" value="{HTTP_ACCEPT_ENCODING}" />
<set name="HTTP_X_ORIGINAL_ACCEPT_ENCODING" value="{HTTP_ACCEPT_ENCODING}" />
<set name="HTTP_ACCEPT_ENCODING" value="" />
</serverVariables>
<action type="Rewrite" url="http://working.backendserver:4588/{R:1}" />
</rule>
</rules>
<outboundRules>
<rule name="ReverseProxyOutboundRule1" preCondition="ResponseIsHtml1">
<match filterByTags="A, Base, Form, Img" pattern="^http(s)?://working.backendserver:4588/(.*)" />
<action type="Rewrite" value="http{R:1}://working.inbound.url.com/{R:2}" />
</rule>
<rule name="RestoreAcceptEncoding" preCondition="NeedsRestoringAcceptEncoding">
<match serverVariable="HTTP_ACCEPT_ENCODING" pattern="^(.*)" />
<action type="Rewrite" value="{HTTP_X_ORIGINAL_ACCEPT_ENCODING}" />
</rule>
<preConditions>
<preCondition name="ResponseIsHtml1">
<add input="{RESPONSE_CONTENT_TYPE}" pattern="^text/html" />
</preCondition>
<preCondition name="NeedsRestoringAcceptEncoding">
<add input="{RESPONSE_CONTENT_TYPE}" pattern=".+" />
</preCondition>
</preConditions>
</outboundRules>
</rewrite>
</system.webServer>
</configuration>
enter code here