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Merger of Exchange org 2 forest Exchange 2007 and Exchange 2010

    Question

  • My company has acquired another..

    Enviorment
    Exchange 2010 and windows 2008
    4 sites with Central Mailbox server
    Total mailbox 900

    FFL and DFL on windows 2008 level

    My envirornment
    Exchange 2007 with All hub CAS and Edge on 2007 SP3
    Mailbox Server CCR enviorment on 2 sites running Exchange 2007 SP1.
    2 Root domains and 2 SMTP domain
    6 sites with mailboxes hosted at 2 Sites, Total mailbox= 1500
    FFL and DFL 2003 14 Domain Controllers with 2 Still on windows 2003(rest on windows 2008 R2)

     

    What Should be the right approach to Merge these 2 exchange ORG.

    What precautions we should take while merging.

    We need to introduce exchange 2010 as part of my Exchange org to host about 50 users mailbox in 3 days time.

    Need some suggestion please

     

    Tuesday, August 23, 2011 4:39 PM

Answers

  • I don’t have anything that directly gives you a 1, 2, 3 on migrating the “wrong” way. Best I can do you is: http://technet.microsoft.com/en-us/library/dd876952.aspx  which talks about cross-forest malbox move operations when one doesn’t have 2010 in it. The SMTP co-existence isn’t the big issue really, you just need to decide whether to do the cut-over first or last and where the connectors will be.
     
     
    "Shadab Khan" wrote in message news:c68d993f-9435-443c-9404-44d9e401ea84...

    Mark my source Exchange ORG is Exchange 2010

    Targe  ORG :Exchange 2007 with mailbox CCR on sp1 ( is that a problem)

    The migrating account will use my SMTP address and we will have to enable autoreply for these users on the source forest ( so we cannot disable their mailbox in the source forest)

    how to go about in this case

     

     

     


    Mark Arnold, Exchange MVP.
    Tuesday, August 23, 2011 5:33 PM
  • The migrating account will use my SMTP address and we will have to enable autoreply for these users on the source forest ( so we cannot disable their mailbox in the source forest)

     

    For the users in the source ORG, you could create an Email Address policy for them to keep the orginal Email address.

    So they have a primay email address and a second email address.

    You also need to create an accepted domian in the target ORG, and let the MX record of the source ORG points to your ORG.

    Friday, August 26, 2011 7:37 AM
    Moderator

All replies

  • Here: http://blogs.technet.com/b/exchange/archive/2006/11/02/3396084.aspx  is a pretty decent starting point to start getting everything from one forest and into the single entity.
    There is coverage on co-existence since traffic will have to fly around a little bit more for a while and how to get the mailbox move process all geared up.
     
     
    "Shadab Khan" wrote in message news:c741c98e-73f9-45f1-8258-9f411384e626...

    My company has acquired another..

    Enviorment
    Exchange 2010 and windows 2008
    4 sites with Central Mailbox server
    Total mailbox 900

    FFL and DFL on windows 2008 level

    My envirornment
    Exchange 2007 with All hub CAS and Edge on 2007 SP3
    Mailbox Server CCR enviorment on 2 sites running Exchange 2007 SP1.
    2 Root domains and 2 SMTP domain
    6 sites with mailboxes hosted at 2 Sites, Total mailbox= 1500
    FFL and DFL 2003 14 Domain Controllers with 2 Still on windows 2003(rest on windows 2008 R2)

     

    What Should be the right approach to Merge these 2 exchange ORG.

    What precautions we should take while merging.

    We need to introduce exchange 2010 as part of my Exchange org to host about 50 users mailbox in 3 days time.

    Need some suggestion please

     


    Mark Arnold, Exchange MVP.
    Tuesday, August 23, 2011 4:45 PM
  • Mark my source Exchange ORG is Exchange 2010

    Targe  ORG :Exchange 2007 with mailbox CCR on sp1 ( is that a problem)

    The migrating account will use my SMTP address and we will have to enable autoreply for these users on the source forest ( so we cannot disable their mailbox in the source forest)

    how to go about in this case

     

     

     

    Tuesday, August 23, 2011 4:54 PM
  • I don’t have anything that directly gives you a 1, 2, 3 on migrating the “wrong” way. Best I can do you is: http://technet.microsoft.com/en-us/library/dd876952.aspx  which talks about cross-forest malbox move operations when one doesn’t have 2010 in it. The SMTP co-existence isn’t the big issue really, you just need to decide whether to do the cut-over first or last and where the connectors will be.
     
     
    "Shadab Khan" wrote in message news:c68d993f-9435-443c-9404-44d9e401ea84...

    Mark my source Exchange ORG is Exchange 2010

    Targe  ORG :Exchange 2007 with mailbox CCR on sp1 ( is that a problem)

    The migrating account will use my SMTP address and we will have to enable autoreply for these users on the source forest ( so we cannot disable their mailbox in the source forest)

    how to go about in this case

     

     

     


    Mark Arnold, Exchange MVP.
    Tuesday, August 23, 2011 5:33 PM
  • thanks mark.
    Tuesday, August 23, 2011 10:21 PM
  • The migrating account will use my SMTP address and we will have to enable autoreply for these users on the source forest ( so we cannot disable their mailbox in the source forest)

     

    For the users in the source ORG, you could create an Email Address policy for them to keep the orginal Email address.

    So they have a primay email address and a second email address.

    You also need to create an accepted domian in the target ORG, and let the MX record of the source ORG points to your ORG.

    Friday, August 26, 2011 7:37 AM
    Moderator