25. EMAIL_USE_SSL Use SSL when connecting to the SMTP server. Disabled by default. EMAIL_USE_TLS Use TLS when connecting to the SMTP server. Disabled by default. EMAIL_TIMEOUT Timeout in seconds for and it should again remember previously revoked tasks when a --statedb is enabled. • Adds EMAIL_USE_TLS to enable secure SMTP connections (Issue #418). Contributed by Stefan Kjartansson. • Now handles utils.mail.Mailer(host=’localhost’, port=0, user=None, password=None, timeout=2, use_ssl=False, use_tls=False) send(message) class celery.utils.mail.Message(to=None, sender=None, subject=None, body=None

25. EMAIL_USE_SSL Use SSL when connecting to the SMTP server. Disabled by default. EMAIL_USE_TLS Use TLS when connecting to the SMTP server. Disabled by default. EMAIL_TIMEOUT Timeout in seconds for and it should again remember previously revoked tasks when a -- statedb is enabled. Adds EMAIL_USE_TLS to enable secure SMTP connections (Issue #418). Contributed by Stefan Kjartansson. Now handles missing utils.mail.Mailer(host='localhost', port=0, user=None, password=None, timeout=2, use_ssl=False, use_tls=False) send(message) class celery.utils.mail.Message(to=None, sender=None, subject=None, body=None

requirements. This backend requires the result_backend setting to be set to a Redis or Redis over TLS [https://www.iana.org/assignments/uri-schemes/prov/rediss] URL: result_backend = 'redis://:password@host:port/db' is the same as: result_backend = 'redis://' Use the rediss:// protocol to connect to redis over TLS: result_backend = 'rediss://:password@host:port/db? ssl_cert_reqs=required' Note that the ssl_cert_reqs Database number to use. Default is 0. The db can include an optional leading slash. When using a TLS connection (protocol is rediss://), you may pass in all values in broker_use_ssl as query parameters

requirements. This backend requires the result_backend setting to be set to a Redis or Redis over TLS [https://www.iana.org/assignments/uri-schemes/prov/rediss] URL: result_backend = 'redis://:password@host:port/db' is the same as: result_backend = 'redis://' Use the rediss:// protocol to connect to redis over TLS: result_backend = 'rediss://:password@host:port/db? ssl_cert_reqs=required' Note that the ssl_cert_reqs Database number to use. Default is 0. The db can include an optional leading slash. When using a TLS connection (protocol is rediss://), you may pass in all values in broker_use_ssl as query parameters

requirements. This backend requires the result_backend setting to be set to a Redis or Redis over TLS [https://www.iana.org/assignments/uri-schemes/prov/rediss] URL: result_backend = 'redis://:password@host:port/db' is the same as: result_backend = 'redis://' Use the rediss:// protocol to connect to redis over TLS: result_backend = 'rediss://:password@host:port/db? ssl_cert_reqs=required' Note that the ssl_cert_reqs Database number to use. Default is 0. The db can include an optional leading slash. When using a TLS connection (protocol is rediss://), you may pass in all values in broker_use_ssl as query parameters

requirements. This backend requires the result_backend setting to be set to a Redis or Redis over TLS [https://www.iana.org/assignments/uri-schemes/prov/rediss] URL: result_backend = 'redis://:password@host:port/db' is the same as: result_backend = 'redis://' Use the rediss:// protocol to connect to redis over TLS: result_backend = 'rediss://:password@host:port/db? ssl_cert_reqs=required' Note that the ssl_cert_reqs Database number to use. Default is 0. The db can include an optional leading slash. When using a TLS connection (protocol is rediss://), you may pass in all values in broker_use_ssl as query parameters

25. EMAIL_USE_SSL Use SSL when connecting to the SMTP server. Disabled by default. EMAIL_USE_TLS Use TLS when connecting to the SMTP server. Disabled by default. EMAIL_TIMEOUT Timeout in seconds for and it should again remember previously revoked tasks when a -- statedb is enabled. Adds EMAIL_USE_TLS to enable secure SMTP connections (Issue #418). Contributed by Stefan Kjartansson. Now handles missing utils.mail.Mailer(host='localhost', port=0, user=None, password=None, timeout=2, use_ssl=False, use_tls=False) send(message) class celery.utils.mail.Message(to=None, sender=None, subject=None, body=None

revoked tasks when a --statedb is enabled. Adds EMAIL_USE_TLS [http://django.readthedocs.io/en/latest/ref/settings.html#std:setting- EMAIL_USE_TLS] to enable secure SMTP connections (Issue #418 [https://github _task_join_will_block = blocks def task_join_will_block(): return _task_join_will_block class _TLS(threading.local): #: Apps with the :attr:`~celery.app.base.BaseApp.set_as_current` attribute instantiated app, #: and is the default app returned by :func:`app_or_default`. current_app = None _tls = _TLS() _task_stack = LocalStack() #: Function used to push a task to the thread local stack #: keeping

revoked tasks when a --statedb is enabled. Adds EMAIL_USE_TLS [http://django.readthedocs.io/en/latest/ref/settings.html#std:setting- EMAIL_USE_TLS] to enable secure SMTP connections (Issue #418 [https://github >>> Connection('amqp://', login_method='EXTERNAL', ssl={ ... 'ca_certs': '/etc/pki/tls/certs/something.crt', ... 'keyfile': '/etc/something/system.key', ... 'certfile': namespace, self.type) self.reply_exchange = self._get_reply_exchange(self.namespace) self._tls = local() self.unclaimed = defaultdict(deque) self.accept = self.accept if accept is

5 EMAIL_USE_SSL Use SSL when connecting to the SMTP server. Disabled by default. EMAIL_USE_TLS Use TLS when connecting to the SMTP server. Disabled by default. EMAIL_TIMEOUT Timeout in seconds for and it should again remember previously revoked tasks when a --statedb is enabled. • Adds EMAIL_USE_TLS to enable secure SMTP connections (Issue #418). Contributed by Stefan Kjartansson. • Now handles utils.mail.Mailer(host=’localhost’, port=0, user=None, password=None, timeout=2, use_ssl=False, use_tls=False) send(message) 12.16. celery.utils.mail 281 Celery Documentation, Release 2.5.5 class celery