SMTP Configuration

To configure SMTP settings for your application, go to Design Console -> Publish -> ‘Custom Domain And Email’ section and enter the following details:

  • SMTP Host:

  • SMTP Port: 587

  • TLS: Unchecked

  • SMTP Username: (your Office365 username)

  • SMTP Password: (your Office365 password or app password in case MFA is enabled)



Following steps must be performed by an Administrator of Microsoft 365 account that the user belongs to.

Step 1: Login to Microsoft 365 console - Go to the Admin center to enable or disable SMTP AUTH on specific mailboxes.

Step 2: Open the Microsoft 365 admin center and go to Users -> Active users

Step 3: Select the user, and in the flyout that appears, click Mail

Step 4: In the Email App section, click Manage Email apps

Step 5: Verify the Authenticated SMTP setting: unchecked = disabled, checked = enabled

Step 6: Click Save

Step 7: The authenticated SMTP must be checked


If MFA is enabled, then customer must create app password to use SMTP.