How to activate SMTP Auth for Winner Bizz email ? (Microsoft - Exchange Online users)

When configuring an e-mail for a user in Winner Bizz, users might encounter an error message stating that "Authentication unsuccessful, SmtpClientAuthentication is disabled for the Tenant".

This message appear because of a change in the Microsoft security and Exchange Online settings (see Enable or disable SMTP AUTH in Exchange Online | Microsoft Learn).

You can parameter this settings on company level or per user level.

Per company

In the Exchange Admin Center, go to the Mail Flow settings page in the Settings and untick the setting labeled Turn off SMTP AUTH protocol for your organization and tick Enable the use of legacy TLS clients.

Per user

1. Open the Microsoft 365 admin center and go to Users > Active users.
2. Select the user, and in the flyout that appears, select Mail.
3. In the Email apps section, select Manage email apps.
4. Verify the Authenticated SMTP setting: unchecked = disabled, checked = enabled.
5. When you're finished, select Save changes.