Question : Autodiscover in Exchagne 2007 Not Working from Outside Non-domain computers

I have a relatively new Exchange 2007 environment on a single server.  Everything (OWA, internal email, send. receive...) is working fine except I cannot get Outlook Anywhere to work from the outside on domain or non-domain computers running Outlook 2007.  I've scoured the internet and EE looking for resolution and not finding it.  I receive a variety of errors relating to certificate name not matching and continuously having to log on to Outlook with no success.  I have a UCC/SAN certificate from Entrust.  

Please see below for the results of some popular tests and requests for information.

[PS] C:\Windows\System32>test-outlookwebservices | fl


Id      : 1003
Type    : Information
Message : About to test AutoDiscover with the e-mail address Administrator@corp
          orate.local.

Id      : 1007
Type    : Information
Message : Testing server server.intdomain.local with the published name h
          ttps://server.intdomain.local/EWS/Exchange.asmx & https://autod
          iscover.extdomainname.com/EWS/Exchange.asmx.

Id      : 1019
Type    : Information
Message : Found a valid AutoDiscover service connection point. The AutoDiscover
           URL on this object is https://server.intdomain.local/Autodiscover/A
        utodiscover.xml.

Id      : 1006
Type    : Information
Message : The Autodiscover service was contacted at https://server.intdomain.lo
          cal/Autodiscover/Autodiscover.xml.

Id      : 1016
Type    : Success
Message : [EXCH]-Successfully contacted the AS service at https://server.intdomain
          .local/EWS/Exchange.asmx. The elapsed time was 15 millisecon
          ds.

Id      : 1015
Type    : Success
Message : [EXCH]-Successfully contacted the OAB service at https://server.
          .intdomain.local/EWS/Exchange.asmx. The elapsed time was 0 millisecon
          ds.

Id      : 1014
Type    : Success
Message : [EXCH]-Successfully contacted the UM service at https://server.intdomain
          .local/UnifiedMessaging/Service.asmx. The elapsed time was 1
          5 milliseconds.

Id      : 1013
Type    : Error
Message : When contacting https://autodiscover.extdomain.com/EWS/Exchange.asmx
          received the error The request failed with HTTP status 401: Unauthori
          zed.

Id      : 1016
Type    : Error
Message : [EXPR]-Error when contacting the AS service at https://autodiscover.
          extdomain.com/EWS/Exchange.asmx. The elapsed time was 31 milliseconds.

Id      : 1015
Type    : Success
Message : [EXPR]-Successfully contacted the OAB service at https://autodiscover
          .extdomain.com/EWS/Exchange.asmx. The elapsed time was 0 milliseconds
          .

Id      : 1014
Type    : Information
Message : [EXPR]-The UM is not configured for this user.

Id      : 1017
Type    : Success
Message : [EXPR]-Successfully contacted the RPC/HTTP service at https://mail.extdomain
          .com/Rpc. The elapsed time was 0 milliseconds.

Id      : 1006
Type    : Success
Message : The Autodiscover service was tested successfully.

Id      : 1021
Type    : Information
Message : The following web services generated errors.
              As in EXPR
          Please use the prior output to diagnose and correct the errors.


Results of Outlook Test for Autodiscover ::


http://schemas.microsoft.com/exchange/autodiscover/responseschema/2006">
  http://schemas.microsoft.com/exchange/autodiscover/outlook/responseschema/2006a">
   
      NameName>
      /o=Corporate/ou=Exchange Administrative Group (FYDIBOHF23SPDLT)/cn=Recipients/cn=NameyDN>
      607a6695-187a-4826-9bce-ed7331e7d048oymentId>
   
   
      emailtType>
      settings
     
        EXCH
        server.intdomain.localer>
        /o=Corporate/ou=Exchange Administrative Group (FYDIBOHF23SPDLT)/cn=Configuration/cn=Servers/cn=SERVER</ServerDN>
        720180F0erverVersion>
        /o=Corporate/ou=Exchange Administrative Group (FYDIBOHF23SPDLT)/cn=Configuration/cn=Servers/cn=CORPSERVER02/cn=Microsoft Private MDB
        CORPSERVER01.CORPORATE.local>
        https://server.intdomain.local/EWS/Exchange.asmx</ASUrl>
        https://server.intdomain.local/EWS/Exchange.asmx
        https://server.intdomain.local/EWS/Exchange.asmx
        https://server.intdomain.local/UnifiedMessaging/Service.asmx
        https://server.intdomain.local/OAB/10fde666-6048-49fc-a19f-0eba8e8dfa6c/rl>
     
     
        EXPR
        mail.extdomain.com
        On
        Basicckage>
        https://autodiscover.extdomain.com/EWS/Exchange.asmx>
        https://autodiscover.extdomain.com/EWS/Exchange.asmxrl>
        https://autodiscover.extdomain.com/EWS/Exchange.asmxrl>
        https://mail.extdomain.com/OAB/10fde666-6048-49fc-a19f-0eba8e8dfa6c/
     
     
        WEB
       
          >https://mail.extdomain.com/owa
         
            EXPR
            https://autodiscover.extdomain.com/EWS/Exchange.asmx>
         
       
       
          https://server.intdomain.local/owal>
         
            EXCH
            https://server.intdomain.local/EWS/Exchange.asmx</ASUrl>
         
       
     
   

Answer : Autodiscover in Exchagne 2007 Not Working from Outside Non-domain computers

That only shows you internal stuff, but doesn't really give much information.
Use a test account with the MS test site.
https://www.testexchangeconnectivity.com

That will test it from the internet.

-M