Can Outlook email be corrupt on the Microsoft Server

Good day, I am not sure where to post this, hopefully this is the right spot.  I have a free Outlook email address that has server as my primary personal email since day dot.  Today it has stopped sending and receiving email.  I have tried on my mobile via the Outlook email client and another non Microsoft client and also on my computer using Outlook app.  When I try to access it via web browser it either displays an http 500 error or just sits there doing nothing.  I have setup another outlook email account and this works fine in all clients and browser.  I have tried calling Microsoft on the support line and the automated bot asked me what device I am using, I said Microsoft PC, she said she didn't understand me, so I said android mobile, she said she didn't understand me, kindly suggested I ask support via the web and hung up on me.  I can't get onto chat, the web sends me around in circles.  Hmm, but I digress. I guess my question is whether it is possible there could be corruption at Microsoft server end and, if so, how would I go about getting it corrected so that I can send and receive emails again? I also noticed checking for subscriptions in Outlook Desktop it just hangs, it doesn't show Microsoft 365, which it does with the other email address I created.  Any help whatsoever would be greatly appreciated.

PS I have tried repairing the Outlook file but as suspected that's not the issue as it is I can't connect via web browser access directly to the outlook server either or on another client email app.  Thank you.