When using Thunderbird I get:

"Sending of message failed.
The message could not be sent because the connection to Outgoing Server (SMTP) smtp.office.com timed out.
Try again"

When restarting I get: "Connection to server outlook.office365.com was reset"

I triple-checked the password, I quadruple-checked all thunderbird server and SMTP settings, I verified IMAP and pop was enabled in outlook, I checked imapi was enabled in outlook, I turned off all antivirus. All to no avail.

Now what?

Thank you in advance for any suggestions