By any chance does the gmail account in question now have two factor authentication turned on?
Eric Sent from my iPad > On Dec 11, 2016, at 6:21 PM, João M. S. Silva <joao.m.santos.si...@gmail.com> > wrote: > > [I'm not subscribed to the list, please CC me.] > > Hi, > > I have been using subversion-tools to send post-commit e-mails. I use > the mailer.py and mailer.conf.example to create my own configuration > file. This has worked for years. > > However, recently I get this error: > > smtplib.SMTPException: SMTP AUTH extension not supported by server > > Searching for a solution, it seems we have to run "starttls" before > "ehlo", but I don't think I can change that, the way I'm running it. > > I'm simply calling mailer.py with the correct configuration file. I > checked if my configuration file was up to date (comparing with the one > from the subversion-tools package) and it is. > > So, the problem should be inside subversion-tools, right? > > I'm sending the post-commit e-mail through Gmail, so maybe some recent > change in Gmail's server could also be the culprit? > > Thanks. > > -- > João M. S. Silva