# Unable to find valid certification path to requested target

**URL:** <https://discuss.elastic.co/t/unable-to-find-valid-certification-path-to-requested-target/274946>\
**Category:** Kibana\
**Tags:** elastic-stack-alerting\
**Created:** [June 4, 2021, 6:11am UTC](https://discuss.elastic.co/t/unable-to-find-valid-certification-path-to-requested-target/274946 "2021-06-04T06:11:31Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![mstrbgn](https://avatars.discourse-cdn.com/v4/letter/m/f17d59/32.png) [@mstrbgn](https://discuss.elastic.co/u/mstrbgn)\
**Post date:** [June 4, 2021, 6:11am UTC](https://discuss.elastic.co/t/unable-to-find-valid-certification-path-to-requested-target/274946/1 "2021-06-04T06:11:31Z")

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I face this issue while send mail using watcher

```auto
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
        at sun.security.provider.certpath.SunCertPathBuilder.build(SunCertPathBuilder.java:141) ~[?:?]
        at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(SunCertPathBuilder.java:126) ~[?:?]
        at java.security.cert.CertPathBuilder.build(CertPathBuilder.java:297) ~[?:?]
        at sun.security.validator.PKIXValidator.doBuild(PKIXValidator.java:434) ~[?:?]
        at sun.security.validator.PKIXValidator.engineValidate(PKIXValidator.java:306) ~[?:?]
        at sun.security.validator.Validator.validate(Validator.java:264) ~[?:?]
        at sun.security.ssl.X509TrustManagerImpl.checkTrusted(X509TrustManagerImpl.java:231) ~[?:?]
        at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(X509TrustManagerImpl.java:132) ~[?:?]
        at org.elasticsearch.common.ssl.DiagnosticTrustManager.checkServerTrusted(DiagnosticTrustManager.java:90) ~[?:?]
        at sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(CertificateMessage.java:638) ~[?:?]

```

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<div class="post-metadata">

**Author:** ![tsullivan](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/tsullivan/32/31077_2.png) [@tsullivan](https://discuss.elastic.co/u/tsullivan)\
**Post date:** [June 8, 2021, 9:17pm UTC](https://discuss.elastic.co/t/unable-to-find-valid-certification-path-to-requested-target/274946/2 "2021-06-08T21:17:12Z")

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Hi, This error says Elasticsearch can't find a certificate file that it is supposed to use. Check your elasticsearch.yml for config settings that point to certificates, and make sure the files have readable permissions by the user controlling the Elasticsearch process.

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<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [July 6, 2021, 9:17pm UTC](https://discuss.elastic.co/t/unable-to-find-valid-certification-path-to-requested-target/274946/3 "2021-07-06T21:17:57Z")

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