# Unknown setting \[xpack.notification.email\] **URL:** \ **Category:** Elasticsearch\ **Tags:** elastic-stack-alerting\ **Created:** [January 12, 2018, 6:04am UTC](https://discuss.elastic.co/t/unknown-setting-xpack-notification-email/115218 "2018-01-12T06:04:49Z")\ **Posts on this page:** 5\ **Page:** 1
**Author:** ![alexus](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/alexus/32/12696_2.png) [@alexus](https://discuss.elastic.co/u/alexus)\ **Post date:** [January 12, 2018, 6:04am UTC](https://discuss.elastic.co/t/unknown-setting-xpack-notification-email/115218/1 "2018-01-12T06:04:49Z")
I'm trying to follow [Email Action | X-Pack for the Elastic Stack [6.1] | Elastic](https://www.elastic.co/guide/en/x-pack/current/actions-email.html#configuring-email) and getting following error while trying to start elasticsearch: ``` elasticsearch | [2018-01-12T05:48:39,956][WARN][o.e.b.ElasticsearchUncaughtExceptionHandler] [ba1897ad8ad4] uncaught exception in thread [main] elasticsearch | org.elasticsearch.bootstrap.StartupException: java.lang.IllegalArgumentException: unknown setting [xpack.notification.email] please check that any required plugins are installed, or check the breaking changes documentation for removed settings elasticsearch | at org.elasticsearch.bootstrap.Elasticsearch.init(Elasticsearch.java:125) ~[elasticsearch-6.1.1.jar:6.1.1] elasticsearch | at org.elasticsearch.bootstrap.Elasticsearch.execute(Elasticsearch.java:112) ~[elasticsearch-6.1.1.jar:6.1.1] elasticsearch | at org.elasticsearch.cli.EnvironmentAwareCommand.execute(EnvironmentAwareCommand.java:86) ~[elasticsearch-6.1.1.jar:6.1.1] elasticsearch | at org.elasticsearch.cli.Command.mainWithoutErrorHandling(Command.java:124) ~[elasticsearch-cli-6.1.1.jar:6.1.1] elasticsearch | at org.elasticsearch.cli.Command.main(Command.java:90) ~[elasticsearch-cli-6.1.1.jar:6.1.1] elasticsearch | at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:92) ~[elasticsearch-6.1.1.jar:6.1.1] elasticsearch | at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:85) ~[elasticsearch-6.1.1.jar:6.1.1] elasticsearch | Caused by: java.lang.IllegalArgumentException: unknown setting [xpack.notification.email] please check that any required plugins are installed, or check the breaking changes documentation for removed settings elasticsearch | at org.elasticsearch.common.settings.AbstractScopedSettings.validate(AbstractScopedSettings.java:312) ~[elasticsearch-6.1.1.jar:6.1.1] elasticsearch | at org.elasticsearch.common.settings.AbstractScopedSettings.validate(AbstractScopedSettings.java:276) ~[elasticsearch-6.1.1.jar:6.1.1] elasticsearch | at org.elasticsearch.common.settings.SettingsModule.(SettingsModule.java:135) ~[elasticsearch-6.1.1.jar:6.1.1] elasticsearch | at org.elasticsearch.node.Node.(Node.java:330) ~[elasticsearch-6.1.1.jar:6.1.1] elasticsearch | at org.elasticsearch.node.Node.(Node.java:245) ~[elasticsearch-6.1.1.jar:6.1.1] elasticsearch | at org.elasticsearch.bootstrap.Bootstrap$5.(Bootstrap.java:212) ~[elasticsearch-6.1.1.jar:6.1.1] elasticsearch | at org.elasticsearch.bootstrap.Bootstrap.setup(Bootstrap.java:212) ~[elasticsearch-6.1.1.jar:6.1.1] elasticsearch | at org.elasticsearch.bootstrap.Bootstrap.init(Bootstrap.java:322) ~[elasticsearch-6.1.1.jar:6.1.1] elasticsearch | at org.elasticsearch.bootstrap.Elasticsearch.init(Elasticsearch.java:121) ~[elasticsearch-6.1.1.jar:6.1.1] elasticsearch | ... 6 more elasticsearch exited with code 1 # cat xpack.env xpack.notification.email=MYEMAILATGMAILDOTCOM # ``` needless to say, I replace _MYEMAILATGMAILDOTCOM_ with my own email) per error's advise: > please check that any required plugins are installed, or check the breaking changes documentation for removed settings I'm using docker image `docker.elastic.co/elasticsearch/elasticsearch-platinum:6.1.1` and xpack is part of it (nothing to install) and I even check for breaking changes documentation and did not find anything relevant... Please advise. ---
**Author:** ![ikakavas](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/ikakavas/32/34430_2.png) [@ikakavas](https://discuss.elastic.co/u/ikakavas)\ **Post date:** [January 12, 2018, 11:46am UTC](https://discuss.elastic.co/t/unknown-setting-xpack-notification-email/115218/2 "2018-01-12T11:46:36Z")
Hi alexus, > [@alexus](#): > > xpack.notification.email is a namespace, not a specific setting. In the link you posted, there is an explicit [example for gmail](https://www.elastic.co/guide/en/x-pack/current/actions-email.html#gmail), please follow that. ---
**Author:** ![alexus](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/alexus/32/12696_2.png) [@alexus](https://discuss.elastic.co/u/alexus)\ **Post date:** [January 18, 2018, 4:43pm UTC](https://discuss.elastic.co/t/unknown-setting-xpack-notification-email/115218/3 "2018-01-18T16:43:47Z")
@ikakavas - gotcha) - my goal is NOT to send _through_ Gmail, but rather _TO_ Gmail) Is there a way to configure _xpack.notification_ namespace outside of _elasticsearch.yml_, like via _curl_? assuming no, do I have to configure above namespace across every node? ---
**Author:** ![spinscale](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/spinscale/32/25011_2.png) [@spinscale](https://discuss.elastic.co/u/spinscale)\ **Post date:** [January 19, 2018, 3:40pm UTC](https://discuss.elastic.co/t/unknown-setting-xpack-notification-email/115218/4 "2018-01-19T15:40:22Z")
the `notification` settings are dynamic and be updated using the [Cluster Update Settings API](https://www.elastic.co/guide/en/elasticsearch/reference/6.1/cluster-update-settings.html) --Alex ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [February 16, 2018, 3:40pm UTC](https://discuss.elastic.co/t/unknown-setting-xpack-notification-email/115218/5 "2018-02-16T15:40:26Z")
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