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Deployment of Exchange 2010 with Exchange 2007 RRS feed

  • Question

  • I am having two AD sites. Internet facing site A and Non Internet Facing site B.

    Site A:Internet facing 

    Exchange 2007 running 

    Site B:Non Internet facing

    Exchange 2k3 is running.

    Now Exchange 2k3 needs to be upgraded to Exchange 2010.

    How mail flow & OWA etc works after upgrading E2k3 to E2010? 

    Tuesday, July 8, 2014 8:17 AM

Answers

  • Hi,

    In fact the upgraded Exchange 2010 OWA users will make a redirect to the Internet facing 2007 site which has the external OWA URL populated.

    You can find more informations at the following blog post: http://blogs.technet.com/b/sjimmie/archive/2010/07/09/owa-coexistence-with-legacy-versions.aspx

    Dominik

    • Marked as answer by Jacob12 Wednesday, July 9, 2014 9:03 AM
    Tuesday, July 8, 2014 11:40 AM
  • Please take a look at this below mentioned article that has raised and resolved this concern more effectively :

    https://www.simple-talk.com/content/article.aspx?article=882#forum

    Also, you can follow this well described blog that includes all the required prerequisites for a swing migration from exchange 2003 to 2010 : http://www.petenetlive.com/KB/Article/0000234.htm

    Moreover, you may also consider at this proficient application (http://www.exchangemigrationtool.com/) that could be a perfect alternate approach to accomplish this migration task in a hassle-free manner without getting any interruption.

    • Marked as answer by Jacob12 Wednesday, July 9, 2014 9:03 AM
    Tuesday, July 8, 2014 11:43 AM
  • I think you might have to upgrade E2K7 to E2K10 first.

    As far as CAS goes, we usually direct connections to the E2K10 server that then redirects or proxies connections to the E2K7 server as needed.

    This is because, in the context of a migration, during coexistence, we need a E2K7 CAS to interact with the E2K7 MBX server and a E2K10 CAS to talk to the E2K10 MBX server (even if all roles are held by the same server).

    So, until all mailboxes have been migrated, we need a E2K7 server and a E2K10 server.

    An E2K10 CAS can redirect (or proxy) to a E2K7 CAS.

    As far as I know, the opposite is not possible.

    Now, in your scenario, the Internet facing site has E2K7 and the non Internet facing site has E2K3 - to be upgraded to E2K10.

    That means clients outside the non Internet facing site would have to access their email via the Internet facing site. 

    There is another principle in migrations: the Internet facing site is upgraded before non Internet facing site. I think this is for the reasone given above: we have to have the newer version of Exchange in the Internet facing site so it can redirect, or proxy, as needed, to the other site.

    That is for CAS / OWA.

    As for mail flow, I would redirect traffic to the E2K10 server (HT perspective) which can talk with a E2K7 HT directly and without obstacle. But once again, in your scenario, the E2K10 server would not be accessible from the Internet.  


    Please mark as helpful if you find my contribution useful or as an answer if it does answer your question. That will encourage me - and others - to take time out to help you.

    • Marked as answer by Jacob12 Wednesday, July 9, 2014 9:03 AM
    Tuesday, July 8, 2014 1:21 PM

All replies

  • Hi,

    In fact the upgraded Exchange 2010 OWA users will make a redirect to the Internet facing 2007 site which has the external OWA URL populated.

    You can find more informations at the following blog post: http://blogs.technet.com/b/sjimmie/archive/2010/07/09/owa-coexistence-with-legacy-versions.aspx

    Dominik

    • Marked as answer by Jacob12 Wednesday, July 9, 2014 9:03 AM
    Tuesday, July 8, 2014 11:40 AM
  • Please take a look at this below mentioned article that has raised and resolved this concern more effectively :

    https://www.simple-talk.com/content/article.aspx?article=882#forum

    Also, you can follow this well described blog that includes all the required prerequisites for a swing migration from exchange 2003 to 2010 : http://www.petenetlive.com/KB/Article/0000234.htm

    Moreover, you may also consider at this proficient application (http://www.exchangemigrationtool.com/) that could be a perfect alternate approach to accomplish this migration task in a hassle-free manner without getting any interruption.

    • Marked as answer by Jacob12 Wednesday, July 9, 2014 9:03 AM
    Tuesday, July 8, 2014 11:43 AM
  • I think you might have to upgrade E2K7 to E2K10 first.

    As far as CAS goes, we usually direct connections to the E2K10 server that then redirects or proxies connections to the E2K7 server as needed.

    This is because, in the context of a migration, during coexistence, we need a E2K7 CAS to interact with the E2K7 MBX server and a E2K10 CAS to talk to the E2K10 MBX server (even if all roles are held by the same server).

    So, until all mailboxes have been migrated, we need a E2K7 server and a E2K10 server.

    An E2K10 CAS can redirect (or proxy) to a E2K7 CAS.

    As far as I know, the opposite is not possible.

    Now, in your scenario, the Internet facing site has E2K7 and the non Internet facing site has E2K3 - to be upgraded to E2K10.

    That means clients outside the non Internet facing site would have to access their email via the Internet facing site. 

    There is another principle in migrations: the Internet facing site is upgraded before non Internet facing site. I think this is for the reasone given above: we have to have the newer version of Exchange in the Internet facing site so it can redirect, or proxy, as needed, to the other site.

    That is for CAS / OWA.

    As for mail flow, I would redirect traffic to the E2K10 server (HT perspective) which can talk with a E2K7 HT directly and without obstacle. But once again, in your scenario, the E2K10 server would not be accessible from the Internet.  


    Please mark as helpful if you find my contribution useful or as an answer if it does answer your question. That will encourage me - and others - to take time out to help you.

    • Marked as answer by Jacob12 Wednesday, July 9, 2014 9:03 AM
    Tuesday, July 8, 2014 1:21 PM