Can't use "Microsoft Office 365" option with a Microsoft account from a private domain

[InFerYes]

Your environment

TbSync version: 4.11
Thunderbird version: 128.4.3esr

Expected behavior

Being able to authenticate and sync with a microsoft account that is linked to a private non-Microsoft domain.

Actual behavior

TbSync says "User not found (HTTP Error 404)."

Steps to reproduce

1. Add new account
2. Choose "Exchange ActiveSync"
3. Select "Microsoft Office 365" from the list
4. Enter account name and user name (email adres) that represents the Microsoft account ([email protected])
5. Click "Add account" button

The windows then shows "User not found (HTTP Error 404)."
Event log says "Could not authenticate, check username and password (HTTP Error 401)."

I verified the working of this account by logging into outlook.com with the account in a webbrowser.

Here is the debug log in it's entirety, I have only redacted my address in the discovery URL. If the actual address is relevant I will email it to you.

** Sat Nov 23 2024 21:54:48 GMT+0100 (Midden-Europese standaardtijd) **
[Querry EAS autodiscover V2 URL] : https://autodiscover-s.outlook.com/autodiscover/autodiscover.json?Email=name%40privatedomain.tld&Protocol=ActiveSync

** Sat Nov 23 2024 21:54:48 GMT+0100 (Midden-Europese standaardtijd) **
[EAS autodiscover V2 with error (network::NS_ERROR_DOM_BAD_URI)] : 
https://autodiscover-s.outlook.com/autodiscover/autodiscover.json?Email=name%40privatedomain.tld&Protocol=ActiveSync => 


** Sat Nov 23 2024 22:00:08 GMT+0100 (Midden-Europese standaardtijd) **
[Querry EAS autodiscover V2 URL] : https://autodiscover-s.outlook.com/autodiscover/autodiscover.json?Email=name%40privatedomain.tld&Protocol=ActiveSync

** Sat Nov 23 2024 22:00:09 GMT+0100 (Midden-Europese standaardtijd) **
[EAS autodiscover V2 with error (network::NS_ERROR_DOM_BAD_URI)] : 
https://autodiscover-s.outlook.com/autodiscover/autodiscover.json?Email=name%40privatedomain.tld&Protocol=ActiveSync =>