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Microsoft is forcing everyone to use the MFA. My code is failing since the account I am using to send emails is MFA(ed).

Error message:
System.Net.Mail.SmtpException: 'The SMTP server requires a secure connection or the client was not authenticated. The server response was: 5.7.57 Client not authenticated to send mail. Error: 535 5.7.139 Authentication unsuccessful, account has an issue. Contact your administrator. [YQBPR0101CA0292.CANPRD01.PROD.OUTLOOK.COM]'

What I have tried:

Does anyone have the same issue?

1 solution

You have to enable the 2 factor authentication on your email account, then create an app password and use
this password in your program.

Check this link "Using app passwords with apps that don't support two-step verification"
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