# Kibana Hostname/IP does not match certificate's

**URL:** <https://discuss.elastic.co/t/kibana-hostname-ip-does-not-match-certificates/297256>\
**Category:** Kibana\
**Created:** [February 15, 2022, 2:31pm UTC](https://discuss.elastic.co/t/kibana-hostname-ip-does-not-match-certificates/297256 "2022-02-15T14:31:38Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![onjangkim](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/onjangkim/32/101840_2.png) [@onjangkim](https://discuss.elastic.co/u/onjangkim)\
**Post date:** [February 15, 2022, 2:31pm UTC](https://discuss.elastic.co/t/kibana-hostname-ip-does-not-match-certificates/297256/1 "2022-02-15T14:31:39Z")

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Hi  
please help me

What is the cause of this error in kibana?

scmail: error sending email: Hostname/IP does not match certificate's altnames: IP: [192.168.18.220](http://192.168.18.237/) is not in the cert's list: "}

 ![Untitled](https://us1.discourse-cdn.com/elastic/original/3X/8/4/8405ecb1f28b4e68129f0dfd3404a6bb0cba7dcc.png)

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<div class="post-metadata">

**Author:** ![onjangkim](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/onjangkim/32/101840_2.png) [@onjangkim](https://discuss.elastic.co/u/onjangkim)\
**Post date:** [February 16, 2022, 6:23am UTC](https://discuss.elastic.co/t/kibana-hostname-ip-does-not-match-certificates/297256/2 "2022-02-16T06:23:51Z")

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my kibana version is 7.15.1  
IP: [192.168.18.237] is ip mail server

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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:** [March 16, 2022, 6:24am UTC](https://discuss.elastic.co/t/kibana-hostname-ip-does-not-match-certificates/297256/3 "2022-03-16T06:24:39Z")

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