Hi all. Using Office 365/2016 on Windows 10. I'm in the early stages of phone support hell with GoDaddy on this issue, and I have a sneaking feeling they're gonna do what they always do when Outlook questions get too complicated: tell me I have to call Microsoft, who in turn tells me I have to call GoDaddy since they're my vendor, et al. In anticipation of that loop-de-loop of suicide, I figured I'd post the query to the one place on Planet Earth that might have a clue.

I have two colleagues with mailboxes on my 365 account. For months their mailboxes have been easily accessible through the left vertical pane on my main Outlook screen. I click on their names and can view and edit their inbox, sent items, you name it. Two days ago one of those mailboxes disappeared from that vertical pane. I noticed that mailbox had also disappeared from Permissions so I reinstated it, set it to Owner, and got the mailbox name back in that pane, but when I access it, I get "Cannot expand the folder. The set of folders cannot be opened. Microsoft Exchange is currently busy. If this message is still displayed in 30 minutes, contact your Exchange administrator.".



I've also noticed that I can no longer access my Personal Forms screen. For instance, I'm trying to add/remove custom columns on my Contacts views like I always do, but when I choose 'forms' I only get a choice of Enterprise forms, not my personal ones. So something's up.

Anyone got any ideas here?