Email functions cause a Connection Refused error

Issue Summary

Test emails are sent successfully but actual user registration and password emails fail with Connection Refused

AWS AMI: ami-78967519 Redash Version: redash.0.10.1.b1834

Steps to Reproduce

• Configure the .env file so that a test email from manage.py successfully sends an email
• Add a new user
• The email is not received, and this trace is logged in logs/celery_error.log

[2016-07-12 06:00:24,074: ERROR/Worker-64] redash.tasks.send_mail[bae2b7b6-297e-4af9-90df-0595034923bc]: Failed sending message: Admin invited you to join Re:dash
Traceback (most recent call last):
  File "/opt/redash/redash.0.10.1.b1834/redash/tasks/general.py", line 32, in send_mail
    mail.send(message)
  File "/usr/local/lib/python2.7/dist-packages/flask_mail.py", line 491, in send
    with self.connect() as connection:
  File "/usr/local/lib/python2.7/dist-packages/flask_mail.py", line 144, in __enter__
    self.host = self.configure_host()
  File "/usr/local/lib/python2.7/dist-packages/flask_mail.py", line 158, in configure_host
    host = smtplib.SMTP(self.mail.server, self.mail.port)
  File "/usr/lib/python2.7/smtplib.py", line 256, in __init__
    (code, msg) = self.connect(host, port)
  File "/usr/lib/python2.7/smtplib.py", line 316, in connect
    self.sock = self._get_socket(host, port, self.timeout)
  File "/usr/lib/python2.7/smtplib.py", line 291, in _get_socket
    return socket.create_connection((host, port), timeout)
  File "/usr/lib/python2.7/socket.py", line 571, in create_connection
    raise err
error: [Errno 111] Connection refused

Technical details:

• How did you install Redash: Used ami-78967519
• I’m using SendGrid as an email provider

[bschwind]

Ah, that did it! Thanks for the help!

[arikfr]

Yes, the above command restarts only the web server. You can restart Celery with sudo supervisorctl restart redash_celery or just restart everything with sudo supervisorctl restart all.