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Exchange 2003 to 2010 Migration Active-Sync & OWA RRS feed

  • Question

  • I am in the process of migrating from Exchange 2003 to Exchange 2010. I have a co-existence running currently. I have moved 1 mail box over to the new exchange server (a test account I created). I have 2 questions, one about OWA and the other about Active-Sync/Mobile access.

    1. When I log into my internal OWA site I can access the webmail just fine. However when I try to go to my external OWA site I get a HTTP Error 404. I have setup the weblink https://webmail.company.com in my external DNS record. However the internal link says it is https://webmail.company.com/owa. Is there something additional that needs to be setup in IIS for the external site to work or only after the migration is completed?

    2. I tried adding the account I migrated to my cell phone for mail but I just get a "Connection to server has failed" message. The internal and external link for mobile access is both the same and setup in external DNS https://mail.comapny.com. Is this a feature that only works after the migration is completed? I have ports 80,443,143,25,993 open in my sonicwall for e-mail services. However the IP is still set to my old exchange server. Is it possible to have 2 settings the same in sonicwall with 2 different IP's? Last time I tried it with migrating my VPN neither VPN server worked after that.

    Any help and insight would be greatly appreciated. I am new to systems administration and this is my first exchange migration

    Wednesday, March 5, 2014 6:28 PM

Answers

  • Check out if you have reverse proxy for the Exchange server. if so you need to change the host name and policy that was configured earlier which is pointing to Exchange 2003 need to be changed to 2013. The Exchange 2010 will proxy to Exchange 2003

    You can verify them using the https://testconnectivity.microsoft.com/ and Mxtoolbox.com to check your dns records and other exchange component working fine

    Microsoft Exchange ActiveSync Connectivity Tests 

    Microsoft Exchange Web Services Connectivity Tests 

    Microsoft Office Outlook Connectivity Tests 

    Hope you have seen this article and diagram which explain on how the internet facing clients gets connected on co-existence mode of Exchange 2003 with 2010

    http://technet.microsoft.com/en-us/library/aa998186.aspx

        
    Wednesday, March 5, 2014 6:33 PM

All replies

  • Check out if you have reverse proxy for the Exchange server. if so you need to change the host name and policy that was configured earlier which is pointing to Exchange 2003 need to be changed to 2013. The Exchange 2010 will proxy to Exchange 2003

    You can verify them using the https://testconnectivity.microsoft.com/ and Mxtoolbox.com to check your dns records and other exchange component working fine

    Microsoft Exchange ActiveSync Connectivity Tests 

    Microsoft Exchange Web Services Connectivity Tests 

    Microsoft Office Outlook Connectivity Tests 

    Hope you have seen this article and diagram which explain on how the internet facing clients gets connected on co-existence mode of Exchange 2003 with 2010

    http://technet.microsoft.com/en-us/library/aa998186.aspx

        
    Wednesday, March 5, 2014 6:33 PM
  • Hi,

    Here are my answers you can refer to :
    1. To deploy OWA in the Exchange 2003 and 2010 coexistence, we need a legacy namespace for the Exchange 2003 server.
    For more information, you can refer to the following article:
     http://blogs.technet.com/b/exchange/archive/2009/12/02/3408921.aspx
    Additionally, for the 404 error, I recommend you check the IIS log to find the root cause:
    http://support.microsoft.com/kb/943891
    2. I recommend you deploy Exchange 2010 in the "Internet Facing AD Site" and Exchange 2003 server in the "Non-Internet facing AD site": set the external URL in CAS 2010 and point mail.company.com to Exchange 2010 server IP address.
    For more information, you can refer to the following article:
    http://blogs.technet.com/b/exchange/archive/2009/12/08/3408985.aspx

    thanks,


    Angela Shi
    TechNet Community Support

    Monday, March 10, 2014 7:55 AM