2015-06-19 13:20:09,793 - root - INFO - Executing <Task(EmailOperator): email_pipeline_start> for 2010-10-10 00:00:00
2015-06-19 13:20:10,459 - root - ERROR - STARTTLS extension not supported by server.
Traceback (most recent call last):
  File "/usr/local/lib/python2.7/site-packages/airflow/models.py", line 746, in run
    task_copy.execute(context=self.get_template_context())
  File "/usr/local/lib/python2.7/site-packages/airflow/operators/email_operator.py", line 36, in execute
    send_email(self.to, self.subject, self.html_content)
  File "/usr/local/lib/python2.7/site-packages/airflow/utils.py", line 339, in send_email
    send_MIME_email(SMTP_MAIL_FROM, to, msg)
  File "/usr/local/lib/python2.7/site-packages/airflow/utils.py", line 349, in send_MIME_email
    s.starttls()
  File "/usr/local/Cellar/python/2.7.9/Frameworks/Python.framework/Versions/2.7/lib/python2.7/smtplib.py", line 644, in starttls
    raise SMTPException("STARTTLS extension not supported by server.")
SMTPException: STARTTLS extension not supported by server.
2015-06-19 13:20:10,503 - root - ERROR - Failed to send email to: ['[email protected]']
2015-06-19 13:20:10,503 - root - ERROR - STARTTLS extension not supported by server.
2015-06-19 13:20:10,503 - root - ERROR - STARTTLS extension not supported by server.
Traceback (most recent call last):
  File "/usr/local/bin/airflow", line 10, in <module>
    args.func(args)
  File "/usr/local/lib/python2.7/site-packages/airflow/bin/cli.py", line 195, in test
    ti.run(force=True, ignore_dependencies=True, test_mode=True)
  File "/usr/local/lib/python2.7/site-packages/airflow/models.py", line 749, in run
    raise e
smtplib.SMTPException: STARTTLS extension not supported by server.