Hi,
Quite a while ago I had signed up to a office 365 trial to learn about it's new features. One of the things I did during the trial was connect to my Hotmail account. Unfortunately the connecting had caused very weird issues at the time, so I unconnected them.
Since then, when people try to send an email to my Hotmail account, they tell me that the email automatically tries to send to my now expired office 365 account, which is sending a delivery failed bounce back. There is no forwarding rule either.
I'm unsure if there is anything I can actually do on my side, or if it's something Microsoft can fix.