Can not access OWA from inside the LAN

Posted on 2012-08-24
Last Modified: 2012-08-24
I am administration a small network with 20 computers and a Small Business Server 2003.
There is only one NIC in the server and the network is behind a Zyxel Zywall USG20 firewall.

Back in June we had a major crash and had to restore the server and chance the firewall.
Since then we can not access Outlook Web Access (OWA) using domain name when we are located inside the LAN.

Eg.: --- > page can not be found
       2.105.xx.xx/exchange --->page can not be found

       sbs2003/exchang  ---> opens owa

I can confirm that you can ping and get respond from correct ip.
I can't figure this out
Question by:Ohmit
    LVL 7

    Accepted Solution

    You should create a new zone in your DNS server named and in there create an A record:

    mail A internal IP,

    Thus when in LAN and you request the internal DNS server will redirect the request to the internal IP address of the Exchange server.

    When outside the LAN the DNS requests will be handled from Internet DNS servers which already know the public IP address related to

    Author Closing Comment

    D**N you good!!!!
    LVL 7

    Expert Comment

    Cheers mate ;)

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