On Sun, 6 May 2018 15:05:55 -0400
Tom Horsley wrote:
SASL mechanisms LOGIN XOAUTH2
Hey! I just found the problem. The XOAUTH2 is what doesn't work.
I finally discovered the smtp_sasl_mechanism_filter parameter
and set it to just login, and the mail is flowing again.
Since oauth2 was invented by google for google, and
microsoft loves to screw up "standards", I'd guess the
problem is with microsoft's implementation of oauth2
(but that's just my natural tendency to assume microsoft
is the problem when it is involved with anything).