OAuth2 and movemail

> If you have any questions that are not answered there, feel free to ask 
> them at the mailing list [email protected].

Guys, I have only found very sparse info, diluted over somewhat lengthy 
threads in one of the gnu mailing-lists, about this matter: what is the 
state of OAuth2 authentication? I'm asking because I use Rmail (which 
uses movemail from mailutils) to fetch messages from the INBOX at my 
organization, and the server very unfortunately started requiring OAuth2 
authentication. I'm very decided not to switch to another email client; 
but it would be nice to be able to read the messages which I receive!