Sending, receiving, and organizing email in Outlook.com
Hi,
I will walk through a few steps with you. Some of these are just to help figure out what is wrong, not to fix it right away. So if nothing changes after a step, that is normal. I will keep going until we solve it.
Typically, the problem is from the backend and cannot be solved on our own.
Did you try it in a separate browser?
How much free space is there on Onedrive? Check at https://onedrive.live.com/?v=managestorage&sw=bypassConfig and let me know.
I look forward to hearing from you to get the results of the troubleshooting.