Detect Disposable Email with Garbage Domain

Question

I am developing website using php/codeigniter.

I have downloaded a list of temporary email domains from github (https://gist.github.com/adamloving/4401361)

I integrated this to my website to filter and validate email address.But I noticed that some domains are garbage and cannot detect by the list provided.

Please image below.

Currently Im using this code to filter/validate emails:

  public function is_temp_mail($mail='')
  {
    $this->db->select('domain');
    $this->db->from('table_disposal_email_domains');
    $domains=$this->db->get()->result();
    foreach($domains as $domain)
    {
      list(,$mail_domain) = explode('@',$mail);
      if(strcasecmp($mail_domain, $domain->domain) == 0){
            return true;
      }
    }
    return false;
  }

How to block garbage domains.Please help.

Boob

Where is the code you tried? – Letishaletitia

@IslamElshobokshy updated. – Boob

How do you logically determine what is garbage and what is not? – Boggers

As shown in the image, you can consider it as garbage disposable domain if it is random string and not readable.Unlike other disposable domains like mailinator.com, its readable. – Boob

Answer 1

One of the issue with disposable emails is that new domains are added daily. So, maintaining your own list isn't gonna be enough after a few days.

You can use the validator.pizza API, which is free and updated frequently.

Disclaimer: I made this API 😊

Swats

Wow Amazing!. Its really free? Thanks @tompec. Its very helpful. I wish I could have higher limit. :) – Boob

Yes it is :) Contact me on twitter if you want a higher limit @thomaspetracco. Cheers. – Swats

Tried some domains from temp-mail.org and validator.pizza says its not disposable. – Rolle

@Tompec You cannot state "it is free", it is misleading. Actually it has both a free and a Pro option, as all validators around. – Conductive

@Conductive We've added a paid plans since that post 4 years ago because some people needed large volumes. But our API is still free to use and requires no signup. – Swats

Excelent service! – Medicable

Answer 2

I wrote a simple API for determining the domains of temporary mails, all you need to determine the temporary mail is to send a GET request:

https://api.testmail.top/domain/check/[email protected]&ip=8.8.8.8

with authorization header:

Authorization: Bearer XXXXXXXXXX.XXXXXXXXXX.XXXXXXXXXX

and in response you will receive a message like this if the mail turns out to be temporary:

{
    "error": 0,
    "result": false,
    "message": "This domain is in Blacklist"
}

you will receive such an answer if the mail turns out to be trusted (something like gmail.com or yahoo.com):

{
    "error": 0,
    "result": true,
    "message": "This domain is in Whitelist"
}

I have described error codes and more detailed instructions on this page

Mcneil

Answer 3

It would be good if you use a third party package to help you on blocking temporary email domains. You can use MailboxValidator API, which had 300 free API credits per month. You can use the free API key with MailboxValidator CodeIgniter Email Validation Package after sign up.

Disclaimer: I am working at MailboxValidator.

Mufti

Answer 4

If you use PHP, you can try this package - beeyev/disposable-email-filter-php
The list of disposable email domains is regularly updated automatically from trusted external sources.

The usage is super simple, here is an example:

<?php
require __DIR__ . '/vendor/autoload.php';

use Beeyev\DisposableEmailFilter\DisposableEmailFilter;

$disposableEmailFilter = new DisposableEmailFilter();

// Check if email address is disposable
$disposableEmailFilter->isDisposableEmailAddress('[email protected]'); // false
$disposableEmailFilter->isDisposableEmailAddress('[email protected]'); // true

Castra