Getting "access denied" error in my Outlook inbox, can't roll back to old Outlook to fix it

Question

Starting yesterday, I get an "access denied" message where my emails are supposed to be. It asks me to log back in, but when I click "continue," it just gives me an error message (something went wrong, [7q6cd]). I get a chance to try again, which results in a different error message.

I thought this might just be a temporary error, but it's still happening today. My phone app works fine, the web version works fine, and the Outlook app on my other computer also works fine, it just refuses to work on my main desktop PC.

I am able to access the emails if I click around through the "focused" and "other" folders, but this is a huge hassle. Every time I open Outlook back up, the problem starts again.

All of the fixes I've seen for this involve toggling back to the classic Outlook. Unfortunately, Microsoft has been super helpful with this and completely disabled that switch for my account, which forces me to use their awful "new and improved" app over the old one that actually worked.

Does anyone know how to fix this? Better yet, does anyone know how I can bypass the decision Microsoft has made for me and go back to using the old Outlook?

Answer 1

Hi

I am experiencing the same problems, this only happened in the past 2 weeks & tends to be when my outlook hasn't been used over the weekend

I am also experiencing a new problem from today, when you reply to an email it takes quite a few minutes to include the previous email trail

My updates are all up to date

Microsoft Outlook Version: 1.2024.1124.100 (Production)

Client Version: 20250116064.14

WebView2 Version: 132.0.2957.127

Session ID: 29df0dd2-f799-9342-99cc-9ab32fcab6d6

Answer 2

This is the fix

You guys are amazing. For the non Computer literate (maybeI am sort am as it took me an hour ). go to your browser.

Type in microsoft entra admin center

Click on Microsoft entra Admin Center

Middle top search bar. Microsoft Information Protection API

Click More if needed

Click on Enterprise Applications

Click Microsoft Information Protection API

Under Manage click Properties.

There is a yes no toggle. Say NO in red. Move to yes in Green

Click Save

Wonder why Microsoft could not write this here instead of me (a healthcare banker with no computer experience)