Fix SMTP doesn't send email after setting up MFA (Outlook)

I recently set up MFA for my Outlook email account and since then, I have been experiencing issues with sending emails via SMTP.

Key Requirements:
- Fix the SMTP email sending issue post setting up MFA on my Outlook account.

Ideal Skills:
- Proficiency in Outlook email setup and management.
- Experience with resolving SMTP configurations.
- Previous experience in fixing email-related MFA issues.
- Strong communication skills to troubleshoot and provide clear instructions.