>If that is the case, your IT Administrator has enabled and enforced Microsoft 2FA authentication on your account
I run a one-man consulting company. As a result, I am the IT Administrator. As near as I can tell the three email accounts that I use are defined exactly the same, except for the name, on the email server.
I think I made the mistake of telling Microsoft that the two email accounts with the problem are company accounts. Will changing them to personal accounts as far as Microsoft is concerned fix the problem? If so, how do I do that?
>Set up your Microsoft 365 sign-in for multi-factor authentication:
I don't use Microsoft 365.