Issue accessing Exchange email from external network

We lost power for several hours yesterday and since bringing everything back up I am having issues accessing Exchange 2010 email from outside the network.  When on the LAN we can send and receive email both to internal and external users.  However if I go to external network and try to access my email either using the email client on my iphone or through OWA it gives a generic cannot connect message.  I ran the testconnectivity.microsoft.com test and it is giving me the following errors.

Testing TCP port 443 on host autodiscover.domain.com to ensure it's listening and open.
       The specified port is either blocked, not listening, or not producing the expected response.
Testing TCP port 80 on host autodiscover.domain.com to ensure it's listening and open.
       The specified port is either blocked, not listening, or not producing the expected response.
Attempting to locate SRV record _autodiscover._tcp.domain.com in DNS.
       The Autodiscover SRV record wasn't found in DNS.


I checked the firewall and port 443 and 80 show they both show ok.
PDISAsked:
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AmitIT ArchitectCommented:
Do you have any HLB? Or use Fiddler or wireshark or netmon to check, where it is breaking.
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Prabhin MPEngineer-TechOPSCommented:
1. Do a telnet to the ports .
   if port is blocked check in server port opened using netstat command
if port opened check firewall rules
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