Dns-email-validation NPM

dns-email-validation

About

dns-email-validation is a typescript library that performs deep validation for the existence of an email address with validation of DNS records.

The main idea is to receive DNS record data instantly, even if the domain or email was created recently. Improved validation interface.

Installation:

npm install dns-email-validation
#OR
yarn add dns-email-validation
#OR
pnpm add dns-email-validation

Interface

By default:

{
  MX: true;
}

You can specify additional settings:

export interface IDnsEmailValidationOptions {
  MX?: boolean; // validation of MX records
  NS?: boolean; // validation of NS records
  A?: boolean; // validation of A records
}

Error codes

MX - MX record is missing
NS - NS record is missing
A - A record is missing
BAD_EMAIL - email address was incorrectly
ENOTFOUND - domain does not exist
UNKNOWN - unknown error

Example:

console.log(await DnsEmailValidation.verify('mail@gmail.com')); // { verification: true }
console.log(await DnsEmailValidation.verify('mail@example.com')); // { verification: false, reason: [ 'MX' ] }

Example: dns-email-validation-example