Microsoft 365 – 403 forbidden

Hello @elsazehra,

I understand that you’re experiencing an issue with Microsoft 365 authentication when using FluentSMTP. To help you resolve this problem as quickly as possible, I would like to request some additional information. If possible, please provide a video demonstration or screenshots of the issue. This will allow us to identify the source of the problem and provide you with precise assistance.

In your video or screenshots, please demonstrate the steps you’re taking to authenticate with Microsoft 365 and include any error messages or unusual behavior you’re encountering. This will enable us to better understand the situation and provide you with an effective solution.

Thank you for your cooperation.
I look forward to hearing back from you with the requested information.

Hi, I’ve logged in to the Azure portal, then I’ve copied the Client ID from App registration, and after that I’ve created a Application client secret using Certificates and Secrets in the Azure portal, and after that I’ve clicked on the Authenticate with Microsoft 365 and 403 forbidden error appeared. I’ve attached the screenshots, please check:
https://i.imgur.com/syaSYqm.png
https://i.imgur.com/PPMFgU0.png

Hello @elsazehra,

I understand that you’re encountering a 403 Forbidden error when trying to authenticate with Microsoft 365. Based on the information you’ve provided and our own investigation, it appears that the issue may be related to your website’s firewall or Web Application Firewall (WAF).

These security measures can occasionally block certain actions, including those related to the FluentSMTP plugin’s features. To address this, I recommend the following steps:

1. Temporarily disable the WAF or firewall:?Try disabling the WAF or firewall temporarily to test if it’s causing the issue.
2. Whitelist specific URLs or requests:?If disabling the WAF resolves the error, consider whitelisting specific URLs or requests, or configuring the WAF to allow necessary actions for the FluentSMTP plugin to function without issues.

Here are the specific URLs that you should whitelist:

- https://dmaid.dk/wp-json/fluent-smtp/outlook_callback

If these steps don’t resolve the issue, please let me know, and I’ll be happy to continue providing assistance.

Thanks, Ibrahim Sharif

Hi, Firewall is not active on my site. Can you please suggest me another solution?

Thank you.

Hello @elsazehra,

I understand that you’ve already verified that the firewall is not active on your site. It’s possible that the request is being blocked by Mod Security from your hosting provider.

I recommend contacting your hosting administrator and asking them to check for any Mod Security or any other rules that may be blocking the request. They should be able to help you identify and disable the offending rule.