OWA 2003 not working after upgrade this weekend

Posted on 2009-02-18
Last Modified: 2012-05-06
I upgraded my Exchange server to 2003 enterprise this weekend and almost everything is working great.

I was running Exchange 2000 on a 2000 SBS server.  The new Exchange server 2003 Ent. is running on a 2003 server that is also a DC in the domain.  The 2000 server and Exchange 2000 are still active in the domain.

If I try OWA inside my network to a mailbox on the new server I have to authenticate 2 times but it works.  Outside the network after the username and password is entered I get a message that there may be a DNS error and the new server can't be found.

Internally and externally if the mailbox exists on the old 2000 server everythign still works fine.

I want to get this working without FBA, SSL or installing a Frontend server.  Is this possible and what is wrong?
Question by:jdmcam2001
    LVL 65

    Expert Comment

    Where does the http traffic point to?
    If it is pointing to the old server then that is your problem. Without a frontend server you can only point to one or the other.

    Any reason why you aren't using SSL? I wouldn't deploy OWA without out.


    Author Comment


    Thanks for the reply.

    I will likely implement SSL and forms in the future.  I just wanted to do the upgrade and get the environment stable with all of the previous functions.  The only reason this isn't a major problem is the 5 heaviest email users in the office have blackeberries that I run off of our BES.

    When you ask where the http traffic points to are you talking about somewhere in the Exchange server config or from a router, firewall perspective?


    LVL 65

    Accepted Solution

    Router/Firewall. Exchange doesn't care.


    Author Closing Comment


    Thanks.  I looked at my firewall again and saw that the http traffic was being routed to the old (Exch 2000) servers IP address.  I just pointed it to the IP of the Exch 2K3 server and I'm working fine.  Thanks again.

    Stay tuned.  I'm not sure that my public folders are replicating.  I read all over that it takes a long time.  But if I can't find a way to determine in it's at least moving slow or at all I'll post another question.



    Write Comment

    Please enter a first name

    Please enter a last name

    We will never share this with anyone.

    Featured Post

    Looking for New Ways to Advertise?

    Engage with tech pros in our community with native advertising, as a Vendor Expert, and more.

    You might have come across a situation when you have Exchange 2013 server in two different sites (Production and DR). After adding the Database copy in ECP console it displays Database copy status unknown for the DR exchange server. Issue is strange…
    Get an idea of what you should include in an email disclaimer with these Top 5 email disclaimer tips.
    In this video we show how to create a Distribution Group in Exchange 2013. We show this process by using the Exchange Admin Center. Log into Exchange Admin Center.: First we need to log into the Exchange Admin Center. Navigate to the Recipients >>…
    In this video we show how to create an email address policy in Exchange 2013. We show this process by using the Exchange Admin Center. Log into Exchange Admin Center.:  First we need to log into the Exchange Admin Center. Navigate to the Mail Flow…

    779 members asked questions and received personalized solutions in the past 7 days.

    Join the community of 500,000 technology professionals and ask your questions.

    Join & Ask a Question

    Need Help in Real-Time?

    Connect with top rated Experts

    15 Experts available now in Live!

    Get 1:1 Help Now