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Thread: Staged migration

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  1. #1
    Join Date
    Jul 2013
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    Question Staged migration

    We're upgrading from a who-knows-what mail server (WKWMS) to Zimbra as part of a larger upgrade process that includes an updated network, new PCs, Windows 7 standard builds, and ultimately some well-earned time off for the team that has to do all of this. Because of the number of people we need to upgrade, we will be doing it in stages, department by department.

    One thing that can't be staged is putting Zimbra in place as our new mail server but what we'd like to do is stage user migration to align with their PC upgrades.

    Here's what I would like to do:

    1. Install Zimbra.
    2. Provision all users.
    3. Configure each user's Zimbra profile to relay all their incoming mail to WKWMS.
    4. Configure WKWMS to relay all outbound mail (to internal and external addresses) through Zimbra.
    5. As each user is upgraded, remove the individual relay from Zimbra to WKWMS.

    It would be really nice, but not critical, to have the relay configured in such a way that Zimbra keeps the messages it relays to WKWMS so that we can start proper email archiving and management for all users right away.

    Is there a way to do this? Thanks.

  2. #2
    phoenix is offline Zimbra Consultant & Moderator
    Join Date
    Sep 2005
    Vannes, France
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    Just out of interest, is this a Network Edition ZCS or the OSE version? In either case you'd be looking at a Split Domain and the relay server doesn't act as an archiving tool. In that configuration you'd move users to the new server as and when you're ready to move them, I'm assuming in this new configuration that your domain name is staying the same (and there in use on the Zimbra server as well)..


    Acompli: A new adventure for Co-Founder KevinH.

  3. #3
    Join Date
    Jul 2013
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    As much as I wish otherwise, the powers that be have dictated that we install OSE. They seem to think that paying the staff to work around the limitations of the OSE is somehow cheaper and at least as effective as paying for a license.

    Split Domain looks perfect for our needs, thank you.

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