[Users] claws-mail with OAuth2 IMAP O365

[Colin Leroy-Mira]

Hi,

> The fact that doing so is trivially easy demonstrates just how weak a
> system of identification the client ID is.

Yeah indeed! although one drawback of doing that would be that the OAuth prompt
displayed to the user would be something along the lines of "Authorize
Mozilla Thunderbird to access your email?", and I could see that being
a bit counter-intuitive to our users.

-- 
Colin