SMTP Mail Setup not working after Multi Factor Authentication

Hi All,

I am not able to configure SMTP Mail Setup after the MFA implementation.
We know earlier this was a simple step to configure SMTP with Office 365 Server Setting.
In my knowledge after MFA, the password will be the AppPassword. I tried this but no luck. See the setup and error in below screen shot.
Business Central 13 CU02 AU

Please share your experience to solve this issue.
Manish Sinha


  • sunmorningindiasunmorningindia Member Posts: 63
    SMTP Server
    SMTP Server Port 587
    Authentication Basic
    User ID [email protected]
    Password ●●●●●●●●●●
    Secure Connection Yes

    Microsoft Dynamics 365 Business Central
    The mail system returned the following error: "The SMTP server requires a secure connection or the client was not authenticated. The server response was: 5.7.57 SMTP; Client was not authenticated to send anonymous mail during MAIL FROM [SYCP282CA0007.AUSP282.PROD.OUTLOOK.COM]".
  • aceXaceX Member Posts: 162

    Same problem here :( … Any body with idea how to resolve this?

    Best Regards
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