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I am creating a app by in which users can register their accounts using email Now I have used regex for email pattern matching and now I am facing problem for authenticity of email. For example a user provides email and I want to know that this email even exits or not. Firebase provides service like this but I want to create my own verifying logic. And I could not find any answer.

Yousaf Raza
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    Does this answer your question? [How should I verify email address existence and domain name existence in javascript or nodeJs?](https://stackoverflow.com/questions/49314277/how-should-i-verify-email-address-existence-and-domain-name-existence-in-javascr) – aviboy2006 May 30 '20 at 19:56
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    @aviboy2006 yes thank you....I tried to search but could not find correct keywords for describing this problem....all I got before was regex validation....this totally works....Thank you – Yousaf Raza May 30 '20 at 19:59

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