I learned early on Nov 5 that some office emails were no longer receiving any mail from BigCommerce servers in Outlook.com.  I of course contacted BC and there is no problem with my servers. Websites are working just fine except for email.

I tried to edit the Outlook account information to verify that it is correct, an error is displayed simply stating that there is a problem.  Here are the steps that I follow:

In Outlook.com, I click the "gear" menu in the header.

Click "More mail settings"

Click "Your email accounts", under "Managing your account"

Click "Details" next to my BC account (labeled "Send and receive") in the section "Accounts you've added"

A message box is displayed which lists the following information:

"To send email from this account without "on behalf of", update your SMTP settings."

"Messages have been successfully retrieved from this account."

I am given the ability to click an Edit or Remove button.

Click the Edit button.

The message box is closed, but I'm then presented with a screen which states:

"Sorry, there seems to be a problem with Outlook right now"

or

sometimes it successfully resets my email to send and receive!
It's as though the Outlook access to my email is being turned on and off - constantly. It appears there are other people having a similar problem right now with their Outlook accounts.

Initially, I assumed that maybe there was a known issue that was being worked on.  It's now been at least two days. My website email is accessed only through Outlook unless I go through the hassle (and loss of email files) by changing to another service.