Maybe you already know this, but Hotmail is experiencing an outage. Can't send or receive emails. twitter.com/Outlook is aware and working on a resolution.
"We are very sorry for this inconvenience. We are currently experiencing an outage. We have the proper teams looking into it. In the meantime, please keep an eye on the Microsoft Office Service health page here for updates. portal.office.com/servicestatus?ocid=usoc_TWITTER_M365_spl100004003866084 "
