We have an account-resource forest deployment type, where the exchange organization are in the resource forest and all the mailboxes are linked to they master accounts that's are hosted on the account forest.
We are trying to make this linked mailboxes visible on Exchange Online, like a mailuser, but in our lab was not possible.
(We don't want to migrate these linked mailboxes, we want to make and hybrid deployment)
And whenever we enable the licence of the Exchange Online to the linked user's other separate mailbox is created (usermailbox).
When we see the details of the running profiles on the sync service, we found that the projections are not replicated to the tenant.
Trying all the steps on this article, we have the same result, the linked mailboxes are not synced to the tenant.
We trying also to change the linked account on the resource forest (change the password and enable it), change the running profiles to accept disabled accounts on the sync services, all this without luck.
Docs of Azure AD Connect say that this is possible but we are stuck on this point
Resource and Account forest Azure AD Connect is configured whit this option and the azure login att is the mail.
Can anyone have an idea why this happens?
Thanks in advance for your help.