Why both sides of the Atlantic ?
Isn't that obvious ? As was demonstrated when they had an "isolated" data centre failure, their systems are globally intertwined like a platetruckload of spaghetti. If you ever install a tool like Little Snitch and allow connections from Outlook one at a time then you will find that simply signing in requires the program to follow a long list of DNS redirects (from memory at least half a dozen) that send the connections all round the world.
Given the way things seem to be built, it's a wonder it ever works at all !
Also makes a mockery of any claims to be compliant with GDPR - I hope no-one here is using O365 for anything business related and relying on Microsoft's claims ;-)
Biting the hand that feeds IT
