# \[SMTP-Alert Settings\] using hosts file static IP instead of DNS lookup

**URL:** <https://discuss.elastic.co/t/smtp-alert-settings-using-hosts-file-static-ip-instead-of-dns-lookup/267909>\
**Category:** Kibana\
**Tags:** elastic-stack-alerting\
**Created:** [March 21, 2021, 1:33pm UTC](https://discuss.elastic.co/t/smtp-alert-settings-using-hosts-file-static-ip-instead-of-dns-lookup/267909 "2021-03-21T13:33:34Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Ahmed\_Abdulaleem](https://avatars.discourse-cdn.com/v4/letter/a/90ced4/32.png) [@Ahmed\_Abdulaleem](https://discuss.elastic.co/u/Ahmed_Abdulaleem)\
**Post date:** [March 21, 2021, 1:33pm UTC](https://discuss.elastic.co/t/smtp-alert-settings-using-hosts-file-static-ip-instead-of-dns-lookup/267909/1 "2021-03-21T13:33:34Z")

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In Alert scenario  
How to force KIaban to use hosts file instead of DNS Lookup to define SMTP server.

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**Author:** ![Vadims\_Daleckis](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/vadims_daleckis/32/57613_2.png) [@Vadims\_Daleckis](https://discuss.elastic.co/u/Vadims_Daleckis)\
**Post date:** [March 23, 2021, 1:12pm UTC](https://discuss.elastic.co/t/smtp-alert-settings-using-hosts-file-static-ip-instead-of-dns-lookup/267909/2 "2021-03-23T13:12:54Z")

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Hi @Ahmed_Abdulaleem ,

Sorry, just to clarify. If you use the system OS hosts file, your custom DNS entries are not picked up?

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**Author:** ![Ahmed\_Abdulaleem](https://avatars.discourse-cdn.com/v4/letter/a/90ced4/32.png) [@Ahmed\_Abdulaleem](https://discuss.elastic.co/u/Ahmed_Abdulaleem)\
**Post date:** [March 30, 2021, 7:55am UTC](https://discuss.elastic.co/t/smtp-alert-settings-using-hosts-file-static-ip-instead-of-dns-lookup/267909/3 "2021-03-30T07:55:24Z")

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yes, I think kibana ignoring the host's file and look directly to DNS Lookup.

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**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [April 27, 2021, 7:55am UTC](https://discuss.elastic.co/t/smtp-alert-settings-using-hosts-file-static-ip-instead-of-dns-lookup/267909/4 "2021-04-27T07:55:39Z")

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