Hi,
I have inherited a 365 migration halfway through due to someone leaving.
At the moment we have some on premise mailboxes and some cloud mailboxes that have been migrated.
The migration is on hold as we don't have the staff in our IT department to complete it at the moment.
I need to give a cloud mailbox user full access to an on premise mailbox but I cannot see the user when I look in mailbox delegation for the on premise mailbox, equally i cannot see the on premise mailbox from the cloud.
I cant find any resources online to help me out. Can anyone suggest anything? Getting desperate and i expect this will crop up again in the near future.
Thanks