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Co-existance between single server 2003 and single server 2007 RRS feed

  • Question

  • Hello,

    I am helping a customer transition from Exchange 2003 SP2 to 2007 SP3 on server 2008 R2 w/SP1. They only have one of each server. They currently use ISA 2006 SP1 to publish ActiveSync and OWA. I read in the guidence (link below) that there can be problems with redirecting if the 2007 CAS and Mailbox roles are on the same box, and only one URL is used. However, this guidence looks like it was written for Exchange 2007 RTM, or SP1. I was wondering if this is still the case, or if since we have ISA in the picture, and no one uses OWA internally, can this happen with only exposing one URL?

    Thanks!

    http://blogs.technet.com/b/exchange/archive/2007/02/07/3399727.aspx

    If you intend to keep E2007 and E2003/2000 servers running side by side, we recommend that you keep the E2007 CAS and E2007 Mailbox servers on separate machines. If you want to combine CAS and Mailbox on a single server while still maintaining E2003/2000 servers, you will need to expose two URLs. One goes to the E2007 server (e.g., https://e2007.contoso.com/owa), while the other goes to the E2003/2000 servers (e.g., https://e2003.contoso.com/exchange).

    Thursday, November 29, 2012 4:44 PM

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