Re: Strange access to exchange via web

I have just come across something that leaves me not even sure what
terms to Google for.

New customer has an Exchange Server 2003 behind a router that only
allows incoming https. The server is using a self signed certificate.
The DNS is provided by their ISP, uses a static IP, however the RDNS
returns the ISP's domain not the customer's. I am working on getting the
ISP to change the RDNS.

Outside users have been able to use
https://www.customer.domain/exchange/ to access their email.

Now some (not all) users are getting a "Server not found page." If the
user does a nslookup on the domain and then substitutes the IP for the
domain they get the Exchange page. A tracert by name and by IP show the
same successful results.

At first it looked like the unlucky ones were on a different ISP but I
have found at least one on the same ISP (even in the same sub-net) as
the customer that is getting the same failure.

What do I look at next?

Thanks.

Roger Vicker, CCP

--
*** Vicker Programming and Service *** Have bits will byte ***
www.vicker.com ***
One Is Seldom Criticized For A Closed Mouth.

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