Migrate exchange 2013 across existing and in-use forest.


  • Hi,

    I have 2 forests : forestA and forestB.

    Users login to windows using forestA accounts and login to their outlook profile/mailbox using forestB accounts.

    Our mailboxes in the Exchange server (server) were created using forestB AD accounts.

    I would like to setup a new Exchange server (server) in forestA, migrate the mailboxes from serverB to serverA, and allow the users to login to outlook using forestA. To perform the last step, my best approach is to link/un-link mailboxes ( but I am not sure this is the more accurate way to proceed )

    Do you think it can be done ?

    Thank you,

    Monday, May 22, 2017 3:54 PM

All replies

  • Hi G.Adm,

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    Thursday, June 1, 2017 9:49 AM
  • Hi G. Adm,

    To make the cross-forest migration easier, you can give CodeTwo Exchange Migration a try:

    The program is designed specifically for cross-forest moves and offers a number of useful features and benefits, e.g.:
    - no downtime during the migration
    - migration reports
    - item and time filters
    - automatic mailbox creation and matching
    - delta scans
    - and more

    If you need any help with the tool, just let me know. We also offer free technical support.

    All the best

    CodeTwo: Software solutions for Exchange and Office 365

    Thursday, June 1, 2017 11:20 AM