AD2008R2/Exchange 2010 to AD2012R2 with ADMT RRS feed

  • Question

  • Hi,

    I’m currently working on a migration project quite some classic: Source is a mono-forest mono-domain Active Directory 2008R2 with Exchange Server 2010. Target is a mono-forest mono-domain Active Directory 2012R2. For now, I’m doing a POC on a duplicated infrastructure. I built the target forest and added a member server with ADMT. The PES Server is up and running. I disabled the sID Filtering option and enabled the sID History option. I’m able to migrate my users from the source to the target. They keep their password and they are able to get access to their resources (shares, files, etc.). However, even if they are able to open Outlook and access to their mailbox, calendar, etc. they are unable to send an email (to themselves or to outside). The NDR details are related to a send as permission not granted. I used Add-ADPermission "usermailbox" -User "TARGET\migrateduser " -Extendedrights "Send As" but it does not work. In the same time, I’ve seen that calendar availability is not working: users cannot see the free/busy details…

    On previous migration projects, I used to migrate to a new Exchange Server version and used cross forest scripts to create disabled contacts, etc. But in this project, I should not change the email system for now (the customer is waiting 2017 to begin a O365 migration).

    I also know that ADMT is skipping some attributes like proxyaddresses, mail, etc. Should be a situation when I will need to migrate to O365…

    That’s why I ask you migration gurus! What is the best option to achieve this migration? Do I have to build a new Exchange 2010 organization and achieve a cross-forest migration? Is there a simplest solution?

    Thank you in advance!

    Wednesday, October 5, 2016 1:34 PM

All replies