Disposable Email Domains List

Download the disposable email domains list

Use the plain-text file for a simple one-domain-per-line blocklist, or use JSON when your application needs the count and update timestamp. These are normalized public representations of the current database.

Disposable email domains

Showing the first 200 domains in alphabetical order from 322,711 published domains. Download the complete list above for bulk processing.

Recently added disposable domains

These are recent root domains from the discovery feed. Disposable providers rotate domains frequently, so a timestamped live list is more useful than an old static snapshot.

What is a disposable email domain?

A disposable email domain is operated by a temporary or throwaway email service. The service can create an inbox without a long-term identity, allowing a visitor to receive a verification message and then abandon the address. These domains are commonly associated with fake signups, free-trial abuse, automated testing, and short-lived accounts.

This is different from a normal free mailbox provider. Gmail, Outlook, Yahoo, and Proton Mail are permanent mailbox services. Forwarding aliases and privacy services can also be legitimate, so a disposable-domain list should not automatically be treated as a list of all free, anonymous, role-based, or privacy-focused addresses.

How the database is maintained

The published list is normalized for practical domain matching. The live API can apply additional signals and matching logic that a downloaded snapshot cannot provide.

How to use the list in your application

For a local blocklist, download the TXT file and compare the normalized email domain. For a continuously updated decision, use the API so you do not need to redeploy a large list every time a provider changes domains.

curl -fsSL https://tempmailchecker.com/disposable-email-domains.txt \
  | grep -Fx "mailinator.com"

const text = await fetch(
  'https://tempmailchecker.com/disposable-email-domains.txt'
).then(r => r.text());
const domains = new Set(text.trim().split('\n'));
const disposable = domains.has(email.split('@').pop().toLowerCase());

import requests

domains = set(requests.get(
    'https://tempmailchecker.com/disposable-email-domains.txt'
).text.splitlines())
is_disposable = email.rsplit('@', 1)[-1].lower() in domains

curl "https://tempmailchecker.com/check?email=test@mailinator.com" \
  -H "X-API-Key: YOUR_API_KEY"

See the complete API code examples for signup flows in cURL, JavaScript, Node.js, Python, PHP, Go, and Ruby.

Disposable email domains API

A static list is useful for offline checks, but it becomes stale after it is downloaded. The live API is better when you need current results, parent-domain matching, wildcard rules, and one consistent decision at signup time. It is designed to return a simple disposable/not-disposable result for an email address.

Read the API documentation or start with 100 lifetime API checks.

Frequently asked questions