Add account Outlook

1

When I add an Outlook account, I get the following message:
unauthorized_client: the client does not exist. If you are the developer of the application, configure a new application through the application administration site at https://apps.dev.microsoft.com/.

2

Had the same issue this morning with a clients system, removing and re-adding the account fixed the issue

3

I’ve already tried it, but it’s still not working

4

Same here. Used to work fine, now on one of my machines keeps giving the error message above. Still working on laptop.

5

If the account is set to IMAP and the version you are running is older than v7.2.34959 then take a look at this Reaction to the Outlook.com authentication problem note, which is in fact prominently displayed on the main forum page. Short answer: update to the latest v7.2.35128 build.