Trying to give the new tool a test; trying to "Add Org" and I run into error "Failed to get folder permissions. The SMTP address has no mailbox associated with it.".
I am using an account that has Office 365/Exchange Online "admin" access but does not have a mailbox in O365 (the mailbox is on-premise). Does it only work with accounts that have O365 mailbox?
I will try that next.