I have a WCF Service that I have boiled down to next to nothing because of this error. It is driving me up the wall. Here's what I have now.

A very simple WCF service with one method that returns a string with the value, "test".

A very simple Web app that uses the service and puts the value of the string into a label.

A web server running IIS 6 on Win 2003 with a SSL certificate.

Other WCF services on the same server that work.

I publish the WCF service to it's https location

I run the web app in debug mode in VS and it works perfectly.

I publish the web app to it's https location on the same server the WCF service resides under the same SSL certificate

I get, "The remote server returned an error: (403) Forbidden"

I have changed almost every setting in IIS as well as the WCF and Web apps to no avail. I have compared setting in the WCF services that work and everything is the same.

Below are the setting in the web.config for the WCF Service and the WEB app:

It appears the problem has to do with the Web app but I am out of ideas. Any ideas:

WCF Service:

  <system.serviceModel>
<bindings>

<client />

<services>
  <service behaviorConfiguration="Ucf.Smtp.Wcf.SmtpServiceBehavior" name="Ucf.Smtp.Wcf.SmtpService">
    <host>
      <baseAddresses>
        <add baseAddress="https://test.net.ucf.edu/webservices/Smtp/" />
      </baseAddresses>
    </host>
    <endpoint address="" binding="wsHttpBinding" contract="Ucf.Smtp.Wcf.ISmtpService" bindingConfiguration="SSLBinding">
      <identity>
        <dns value="localhost"/>
      </identity>
    </endpoint>
    <endpoint address="mex" binding="mexHttpsBinding" contract="IMetadataExchange"/>
  </service>
</services>

<behaviors>
  <serviceBehaviors>
    <behavior name="Ucf.Smtp.Wcf.SmtpServiceBehavior">
      <serviceMetadata httpsGetEnabled="true" />
      <serviceDebug includeExceptionDetailInFaults="true" httpsHelpPageEnabled="True"/>
    </behavior>
  </serviceBehaviors>
</behaviors>

Web App:

    <system.serviceModel>
    <bindings><wsHttpBinding>
<binding name="WSHttpBinding_ISmtpService" closeTimeout="00:01:00"
 openTimeout="00:01:00" receiveTimeout="00:10:00" sendTimeout="00:01:00"
 bypassProxyOnLocal="false" transactionFlow="false" hostNameComparisonMode="StrongWildcard"
 maxBufferPoolSize="524288" maxReceivedMessageSize="65536" messageEncoding="Text"
 textEncoding="utf-8" useDefaultWebProxy="true" allowCookies="false">
 <readerQuotas maxDepth="32" maxStringContentLength="8192" maxArrayLength="16384"
  maxBytesPerRead="4096" maxNameTableCharCount="16384" />
 <reliableSession ordered="true" inactivityTimeout="00:10:00"
  enabled="false" />
 <security mode="Transport">
  <transport clientCredentialType="None" proxyCredentialType="None"
   realm="" />
  <message clientCredentialType="Windows" negotiateServiceCredential="true"
   establishSecurityContext="true" />
 </security>
</binding>

<client>


<endpoint address="https://net228.net.ucf.edu/webservices/smtp/SmtpService.svc"
binding="wsHttpBinding" bindingConfiguration="WSHttpBinding_ISmtpService"
contract="SmtpService.ISmtpService" name="WSHttpBinding_ISmtpService">
<identity>
 <dns value="localhost" />
</identity>

  </client>
</system.serviceModel>