Forum Discussion
Exchange on premise + separate multi-forest AD + single server
I'm struggling here a bit to understand what I need to do and everything I look for online talks about O365 hybrid deployments but who the heck wants O365 and trusts M$ with their data is beyond me. ...
Your requirement to have separate ADs and the same Exchange environment cannot work unless you use Office 365, as that option is possible.
Check out the Office 365 Trust Center for your questions on trusting them with data and security.
A resource forest is possible, but it's a complex solution and you need to consider how many of them you are planning, as it's complex with just one resource forest. The advice to get a partner who has done these before is the best advice here.
Check out the Office 365 Trust Center for your questions on trusting them with data and security.
A resource forest is possible, but it's a complex solution and you need to consider how many of them you are planning, as it's complex with just one resource forest. The advice to get a partner who has done these before is the best advice here.
Brian I disagree with this guidance "Your requirement to have separate ADs and the same Exchange environment cannot work unless you use Office 365, as that option is possible."
Prior to Office 365, it was common practice in a merger or acquisition to perform cross forest migrations resulting in a resource forest model with linked mailboxes. You can still do this today without Office 365. I agree it is complex and a good Microsoft partner can help, but it would be false to say that Office 365 is the only option for them to consider.
Prior to Office 365, it was common practice in a merger or acquisition to perform cross forest migrations resulting in a resource forest model with linked mailboxes. You can still do this today without Office 365. I agree it is complex and a good Microsoft partner can help, but it would be false to say that Office 365 is the only option for them to consider.
Dear Joe,
Could you please share any link or guideline for below requirement. Or Please confirm is it possible or not
1. Companya.com (PDC) server 2016
2. Companyb.com (PDC) server 2016
3. Exchange 2016
Now I want to configure Exchange server for both companya and companyb. User authentication from companya and companyb. for company wise user id.
- Hi - would you mind please asking this question in a new post?
- That is not what I said. I said that two ADs and one Exchange Org is not possible unless using Exchange Online. The OP asked for one Exchange environment but separate ADs. If your one Exchange environment is Exchange Online then you can have one AD and sync different OUs to different tenants, but you cannot have two (or more) AD forests but a single Exchange Org.
A cross forest deployment would result in multiple ADs and multiple Exchange Orgs.Brian,
Do you have any steps on how to perform a cross forest cutover migration from exchange 2010 to O365. We are acquiring another facility and we did a hybrid migration to O365, so I need to pull their email into our tenant before we set up a trust or migrate any AD accounts over.
