Mailchecker - Cross-language Temporary (Disposable/Throwaway) Email Detection Library. Covers 55 734+ Fake Email Providers

Cross-language email validation. Backed by a database of over 55 000 throwable email domains.

• Validate the format of your email (uses validator.js email regex underneath and FILTER_VALIDATE_EMAIL for PHP)
• Validate if the email is not a temporary mail (yopmail-like..., add your own dataset to list.txt)

This will be very helpful when you have to contact your users and you want to avoid errors causing lack of communication or want to block "spamboxes".

Need to provide Webhooks inside your SaaS?

• Try Hook0, an open-source self-hostable webhook micro-service

Need to embed a charts into an email?
It's over with Image-Charts, no more server-side rendering pain, 1 url = 1 chart.

https://image-charts.com/chart?
cht=lc // chart type
&chd=s:cEAELFJHHHKUju9uuXUc // chart data
&chxt=x,y // axis
&chxl=0:|0|1|2|3|4|5| // axis labels
&chs=873x200 // size

Use Image-Charts for free

​

Upgrade from 1.x to 3.x​

Mailchecker public API has been normalized, here are the changes:

• NodeJS/JavaScript: MailChecker(email) -> MailChecker.isValid(email)
• PHP: MailChecker($email) -> MailChecker::isValid($email)
• Python

import MailChecker
m = MailChecker.MailChecker()
if not m.is_valid('[email protected]'):
  # ...

became:

import MailChecker
if not MailChecker.is_valid('[email protected]'):
  # ...

MailChecker currently supports:

• NodeJS (CommonJS, Instructions)
• JavaScript (Client-Side, Instructions)
• PHP (Instructions)
• Python (Instructions)
• Ruby (Instructions)
• Rust (Instructions)
• Elixir (Instructions)
• Clojure (Instructions)
• Go (Instructions)
• Easily add support for your own language with MailChecker template system and send us a pull-request!

Usage​

NodeJS​

var MailChecker = require('mailchecker');

if(!MailChecker.isValid('[email protected]')){
  console.error('O RLY !');
  process.exit(1);
}

if(!MailChecker.isValid('myemail.com')){
  console.error('O RLY !');
  process.exit(1);
}

JavaScript​

<script type="text/javascript" src="MailChecker/platform/javascript/MailChecker.js"></script>
<script type="text/javascript">
if(!MailChecker.isValid('[email protected]')){
  console.error('O RLY !');
}

if(!MailChecker.isValid('myemail.com')){
  console.error('O RLY !');
}
</script>

PHP​

include __DIR__."/MailChecker/platform/php/MailChecker.php";

if(!MailChecker::isValid('[email protected]')){
  die('O RLY !');
}

if(!MailChecker::isValid('myemail.com')){
  die('O RLY !');
}

Python​

pip install mailchecker

# no package yet; just drop in MailChecker.py where you want to use it.
from MailChecker import MailChecker

if not MailChecker.is_valid('[email protected]'):
    print "O RLY !"

Django validator: https://github.com/jonashaag/django-indisposable

Ruby​

require 'mail_checker'

unless MailChecker.valid?('[email protected]')
  fail('O RLY!')
end

Rust​

 extern crate mailchecker;

assert_eq!(true, mailchecker::is_valid("[email protected]"));
assert_eq!(false, mailchecker::is_valid("\[email protected]\n"));
assert_eq!(false, mailchecker::is_valid("[email protected]"));

Elixir​

Code.require_file("mail_checker.ex", "mailchecker/platform/elixir/")

unless MailChecker.valid?("[email protected]") do
  raise "O RLY !"
end

unless MailChecker.valid?("myemail.com") do
  raise "O RLY !"
end

Clojure​

; no package yet; just drop in mailchecker.clj where you want to use it.
(load-file "platform/clojure/mailchecker.clj")

(if (not (mailchecker/valid? "[email protected]"))
  (throw (Throwable. "O RLY!")))

(if (not (mailchecker/valid? "myemail.com"))
  (throw (Throwable. "O RLY!")))

Go​

package main

import (
  "log"
  
  "github.com/FGRibreau/mailchecker/platform/go"
)

if !mail_checker.IsValid('[email protected]') {
  log.Fatal('O RLY !');
}

if !mail_checker.IsValid('myemail.com') {
  log.Fatal("O RLY !")
}

Installation​

Go
go get https://github.com/FGRibreau/mailchecker
NodeJS/JavaScript
npm install mailchecker
Ruby
gem install ruby-mailchecker
PHP
composer require fgribreau/mailchecker
We accept pull-requests for other package manager.

Data sources​

TorVPN

  $('td', 'table:last').map(function(){
    return this.innerText;
  }).toArray();

BloggingWV
Array.prototype.slice.call(document.querySelectorAll('.entry > ul > li a')).map(function(el){return el.innerText});
... please add your own dataset to list.txt.

Regenerate libraries from list.txt​

Just run (requires NodeJS):
npm run build

Development​

Development environment requires docker.

# install and setup every language dependencies in parallel through docker
npm install

# run every language setup in parallel through docker
npm run setup

# run every language tests in parallel through docker
npm test

Backers​

Maintainers​

These amazing people are maintaining this project:

• Francois-Guillaume Ribreau

Contributors​

These amazing people have contributed code to this project:

• Owen Stephens
• Jacob Burenstam
• Herman Slatman
• trisix — view contributions
• Greenkeeper — view contributions
• Dustin Clark
• Anton Zhiyanov
• Bruel Nicolas — view contributions
• Robin — view contributions
• Spir — view contributions
• Vincent Giersch
• Adrian Carolli
• Dave Powers
• Frank Phillips — view contributions
• LuckyDino — view contributions
• ven — view contributions
• Romain Gay
• Sebastian Cohnen
• Dalai — view contributions
• quaswex — view contributions
• sxyuan — view contributions
• Francois-Guillaume Ribreau
• Dustin Clark
• larsvegas
• Zeeshan Muhammad
• kkleejoe — view contributions
• Luiz Freneda
• thorinisme — view contributions
• Liudas Šumskas — view contributions
• Alexander — view contributions
• Alex Dom￸aki￸dis
• Carlos Rios
• Jacek Bzdak — view contributions
• D — view contributions
• Jonas Haag
• ￸A￸l￸e￸x D￸o￸m￸a￸k￸i￸d￸i￸s
• Dan McGregor — view contributions
• Thiago Rodrigues
• Dilli Labs LLC
• Kieron Lawson
• Kslr
• Lint
• chadliu23 — view contributions
• milkyklim
• Sharat M R — view contributions
• Nicolas Perraud — view contributions
• tbdmainrepo — view contributions
• Kslr — view contributions
• Fabio Caccamo
• cyril souillard — view contributions
• Grégoire Pineau
• Bruno Bossola
• florian-crtl — view contributions
• mikeyzm
• Grégoire Pineau
• alonga — view contributions
• Vitalii Tverdokhlib
• Francis Chuang — view contributions
• mikeyzm — view contributions
• Pascal Vizeli
• Caroline — view contributions
• Daniel Mihai
• HWVS — view contributions
• seb's — view contributions
• Chigusa0w0
• Maki

Discover how you can contribute by heading on over to the CONTRIBUTING.md file.

Changelog​