Exchange 2007 Microsoft Connectivity Analyzer

We are having problems connecting users outside the network with Outlook.. Help please

Testing Outlook connectivity.

The Outlook connectivity test failed.

	Additional Details
	Elapsed Time: 23489 ms.

Test Steps

The Microsoft Connectivity Analyzer is attempting to test Autodiscover for rricks@co.hernando.fl.us.

Testing Autodiscover failed.

	Additional Details
	Elapsed Time: 23488 ms.

Test Steps

Attempting each method of contacting the Autodiscover service.

The Autodiscover service couldn't be contacted successfully by any method.

	Additional Details
	Elapsed Time: 23488 ms.

Test Steps

Attempting to test potential Autodiscover URL https://co.hernando.fl.us:443/Autodiscover/Autodiscover.xml

Testing of this potential Autodiscover URL failed.

	Additional Details
	Elapsed Time: 21221 ms.

Test Steps

Attempting to resolve the host name co.hernando.fl.us in DNS.

The host name resolved successfully.

	Additional Details
	IP addresses returned: 24.129.129.232 Elapsed Time: 192 ms.

	Testing TCP port 443 on host co.hernando.fl.us to ensure it's listening and open.
	The specified port is either blocked, not listening, or not producing the expected response