Aug 14 2017 05:12 AM
Aug 14 2017 05:12 AM
Following situation at a customer:
- Account and Resource forest
- Office 365 tenant
- Azure AD Connect machine running in Account forest, syncing both directories
- ADFS in Account forest
- Exchange 2010 in Resource forest with Hybrid setup
What we want:
- decommision resource forest/domain and Exhange 2010
- install Exchange 2016 in account forest
- make 2016 the hybrid
I was wondering which steps we had to take. We are now already migrating user to Exchange Online. For a new user we create a user with Linked Mailbox in Resource domain. We ADMT it to the Account forest, we trigger ADSync. A mailuser is made in Office 365 and we iniate a mailbox move.
Then in the resource forest we have a Mail Contact in Ex2010 and a disabled account in AD.
1- How can we get rid off these migrated users?
2- When can we install 2016 in the account forest, can it do any harm when we install it next to Ex 2010 which is in the other forest(ofcourse we have a trust)
3- How to move on from here?
Thanks for your support!
(sorry, I also posted this by accident in the Office 365 community. I realized later it should be here?)
Aug 30 2017 05:39 AM
OK, it all went fine. I start configuring it. Thanks for all the help and talk later!
Dec 26 2017 04:49 AM
Dec 26 2017 04:49 AM
@Olaf Duits wrote:
Following situation at a customer:
- Account and Resource forest
- Office 365 tenant
- Azure AD Connect machine running in Account forest, syncing both directories
- ADFS in Account forest
- Exchange 2010 in Resource forest with Hybrid setup
What we want:
- decommision resource forest/domain and Exhange 2010
- install Exchange 2016 in account forest
- make 2016 the hybrid
I was wondering which steps we had to take. We are now already migrating user to Exchange Online. For a new user we create a user with Linked Mailbox in Resource domain. We ADMT it to the Account forest, we trigger ADSync. A mailuser is made in Office 365 and we iniate a mailbox move.
Then in the resource forest we have a Mail Contact in Ex2010 and a disabled account in AD.
1- How can we get rid off these migrated users?
2- When can we install 2016 in the account forest, can it do any harm when we install it next to Ex 2010 which is in the other forest(ofcourse we have a trust)
3- How to move on from here?
Thanks for your support!
(sorry, I also posted this by accident in the Office 365 community. I realized later it should be here?)
Olaf Duits, we too have the same requirement and same current setup as described by you. Did you manage to decommission exchange in resource forest and install in account forest ? If so, please provide the steps you followed to complete this.
Jan 11 2018 10:16 AM
Jan 11 2018 10:16 AM
Jun 13 2018 03:23 AM
Richard,
Are these the attributes are important for the export and import?
EmailAddress
ProxyAddresses
msExchRecipientTypeDetails
msExchMailboxGuid
Or am I missing some attributes?
Accounts are already created and configured for SSO in the users forest.I will map the users with msExchMasterAccountSID and objectGuid
Jun 14 2018 07:17 AM
Are you decommissioning the Forest that has Exchange installed or will that remain?
Jul 02 2018 02:31 PM
no, that forest will remain.