Exchange On-Premises
Exchange Online
Mailbox 2
Mailbox 4
Mailbox 1
Mailbox 3
1. Mailbox 2 is granted full access to mailbox 1
then Mailbox 1 is moved to the cloud
2. Mailbox 3 is granted full access to Mailbox 1,
which is now in the cloud
3. Mailbox 2 and Mailbox 3 moved to the cloud
4. Mailbox 4 given full access to Mailbox 1 then
Mailbox 4 move to on-premises
Changes needed:
Nothing. This just works; so why is it
unsupported?
(This does not address the Outlook delegate
management piece)
Note: this is the scenario that allows general
delegate access cross-premises.
Full Mailbox Access
