Elasticsearch not able to search string contains special character

I am developing an web application where I'm using Elasticsearch. I'm trying to search strings contains - or @ eg. email address koushik@testmail.com, but it's not working. Other fields like first name, last name etc. working fine. Am I missing something. Any help will be appreciated.


It's probably related to the analyzer you are using.
You should read this: Text analysis | Elasticsearch Guide [8.1] | Elastic

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