How to fix “forbidden” error ?

Following up on below request

We configured Office 365, but are encountering a “forbidden” error. Can you tell me how to resolve this?

https://s3.amazonaws.com/i.snag.gy/NzYmDq.jpg

Hello @charanrajk,

I’ve reviewed the information you’ve provided and noticed that you’ve mentioned a few potential reasons for the error. Here are some additional troubleshooting steps that may help:

1. Confirm App Callback URL:?Double-check the URL you’ve entered in FluentSMTP settings. Ensure it matches the endpoint provided by FluentSMTP and includes any necessary parameters.
2. Verify Permissions:?Check if the sender email address has a Mailbox created, has permission to send emails, and possesses a valid Office365 subscription.
3. Review Account Type:?Ensure you’ve selected “Accounts in any organizational directory (Any Azure AD directory – Multitenant) and personal Microsoft accounts (e.g. Skype, Xbox)” as the account type while creating the Azure App.
4. Check Logged-in Account:?When authorizing, use the same Microsoft account that was used to create the Azure App.
5. Domain Verification:?Confirm that all your domains are verified within Microsoft Office365.

If you’ve already checked these aspects, you may want to consult the Office 365 API documentation again. If the issue persists, reaching out to Microsoft Office365 Support for further assistance would be advisable.