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Dynamics 365 Community / Blogs / OlisterR's NAV/BC blog / How to bypass Multi-Factor ...

How to bypass Multi-Factor Authentication or Email Authentication issue for Office 365 / Microsoft 365 Emails

Olister Rumao Profile Picture Olister Rumao 3,957

Problem Statement:

When MFA has introduced a couple of months ago in Office 365 / Microsoft 365 or made mandatory for a certain set of accounts, Microsoft Dynamics 365 NAV / Business Central had issues sending email through SMTP Email.

Pre-requisites:

  • Office 365 / Microsoft 365 Account
  • Enabled Outlook
  • Microsoft Dynamics 365 Business Central 

Demonstration:

1. Creating App Password for Multi-Factor Authentication based Accounts:
After you have set up MFA, Microsoft 365 allows you to create a One-Time password to login to the corresponding apps. This password cannot be viewed again so copy it somewhere. Follow the process below.
Office 365 > My Account

Settings & Privacy > Privacy > View Page Link



Security & Privacy > Additional security verification > Create and manage app password


Create Password


Copy Password



2. Enabling Authenticated SMTP in Office 365 / Microsoft 365 Admin Center:

After you have a password created, you need to check if you Mail Apps have the access to your email.
Follow the process below to enable.
Open Users in Office 365 > Mails > Manage email apps

Enable Authenticated SMTP
After this, you just have to use your  Email and App password created in Step #1 in SMTP Setup and run the Test Email.

SMTP Setup in Business Central


Conclusion:

That's all and I'm happy that I figured this out once it for all.
I hope this helps!!

Thanks. Cheers!!

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