Node Email Verifier is an email validation library for Node.js that checks if an email address has a valid format and optionally verifies the domain's MX (Mail Exchange) records to ensure it can receive emails.

• RFC 5322 Format Validation: Validates email addresses against the standard email formatting rules.
• MX Record Checking: Verifies that the domain of the email address has valid MX records indicating that it can receive emails. This check can be disabled using a parameter.

Install the package using npm:

npm install node-email-verifier --save

Here's how to use Node Email Verifier, with and without MX record checking:

import emailValidator from 'node-email-verifier';

// Example with MX record checking
async function validateEmailWithMx(email) {
  try {
    const isValid = await emailValidator(email);
    console.log(`Is "${email}" a valid email address with MX checking?`, isValid);
  } catch (error) {
    console.error('Error validating email with MX checking:', error);
  }
}

// Example without MX record checking
async function validateEmailWithoutMx(email) {
  try {
    const isValid = await emailValidator(email, false);
    console.log(`Is "${email}" a valid email address without MX checking?`, isValid);
  } catch (error) {
    console.error('Error validating email without MX checking:', error);
  }
}

validateEmailWithMx('test@example.com').then();
validateEmailWithoutMx('test@example.com').then();

Validates the given email address, with an option to skip MX record verification.

• email (string): The email address to validate.
• checkMx (boolean): Whether to check for MX records, this defaults to true.

• Promise<boolean>: A promise that resolves to true if the email address is valid and, if checked, has MX records; false otherwise.

Contributions are always welcome! Feel free to submit a PR.

This project is licensed under the MIT License.