Re: Outlook XOAUTH2 "AUTHENTICATE failed" message with working mutt_oauth2.py

[Peter P. <pet...@fa...>]

Hi Norm,

* Norm Wood <nor...@fa...> [2025-07-07 19:36]:
[...]
> appreciate suggestions on how to diagnose the problem further.  After
> looking through isync-devel, I've also tried authenticating using the
> oauth2ms tool.  

I had success here with the instructions from
https://people.maths.bris.ac.uk/~mb13434/linux_m_uob/o365_imap_smtp.html
and below are my notes from how I did it about two years ago. Perhaps
this is helpful? They come without any warranty though.

best, Peter

------>
	sudo aptitude install libsasl2-dev
	git clone https://github.com/moriyoshi/cyrus-sasl-xoauth2.git
	./autogen.sh
	./configure
Edit Makefile to have the line
	pkglibdir = ${CYRUS_SASL_PREFIX}/lib/sasl2
yield
	pkglibdir = ${CYRUS_SASL_PREFIX}/lib/x86_64-linux-gnu/sasl2
and run
	sudo make install
which installs libraries into /usr/lib/x86_64-linux-gnu/sasl2
Reinstall isync to make it aware of the new sasl plugin(?)
	sudo aptitude reinstall isync
Get this following tool to fetch oauth2 tokens and copy it into ~/bin
	git clone https://github.com/harishkrupo/oauth2ms.git
	cd oauth2ms
	cp oauth2ms ~/bin/
Install requirements via apt
	apt install python3-xdg python3-msal python3-gnupg
Now I need to create and edit ~/.config/oauth2ms/config.json to yield
	{
		"tenant_id": "TENANT_ID",
		"client_id": "CLIENT_ID",
		"client_secret": "CLIENT_SECRET",
		"redirect_host": "localhost",
		"redirect_port": "5000",
		"redirect_path": "/getToken/",
		"scopes": ["https://outlook.office.com/IMAP.AccessAsUser.All", "https://outlook.office.com/SMTP.Send"]
	}
Where TENANT_ID and CLIENT_ID are long strings which I got from the
local administrators of that email service.
Then I ran oauth2ms and it opened a browser through which I logged in and oauth2ms received a token in return, which got stored as ~/.local/share/oauth2ms/credentials.bin