Business Email Checker

isBizMail tells you whether a given email address is free (gmail.com, yahoo.es, yandex.ru etc) or not. Detects around 4-5k domains and sub-domains.

Under the hood isBizMail mostly relies on 3-rd party domain lists created by people and organizations mentioned in Credits section.

Looking for PHP, .NET etc?

• PHP implementation (PHP 5.4.0+)
• .NET implementation (.NET Standard 2.0+)

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You can support us in a small way, please consider starring and sharing this repo! It helps us getting known and grow the community.

Installation

You can install isBizMail for JavaScript via your prefered dependency manager, e.g. PNMP, Yarn etc

npm i @salaros/is-biz-mail # pnpm add @salaros/is-biz-mail

or via Yarn

yarn add @salaros/is-biz-mail

Vanilla

One of examples of vanilla JavaScript usage might be a simple HTML page:

<script src="https://cdn.jsdelivr.net/npm/@salaros/is-biz-mail@latest/dist/isBizMail.iife.js"></script>
<script>
    var email = '[email protected]';
    var result = new isBizMail().isFree(email);
    console.log([email, result]); // (2) ["[email protected]", false], because *.onmicrosoft.com is considered a free domain
</script>

TS / ESM

import IsBizMail from '@salaros/is-biz-mail';
const isBizMail = new IsBizMail();

const email = '[email protected]';
const result = isBizMail.isFree(email);
console.log([email, result]); // (2) ["[email protected]", true]
// ...

CommonJS, Node.js etc

const IsBizMail = require('@salaros/is-biz-mail');
const isBizMail = new IsBizMail();

const email = '[email protected]';
const result = isBizMail.isFree(email);
console.log([email, result]); // (2) ["[email protected]", true]
// ...

Testing: Jest

npm install # pnpm/yarn install
npm test    # pnpm/yarn test

Credits

• SpamAssasin's 'freemail domains' filter
• SpamAssasin's 'mailcom domains' filter
• Matthieu Moquet's list of disposable emails.