Complete List of Disposable Email Domains
5,000+ disposable and temporary email domains, tracked and updated weekly. Search any domain to check if it is disposable, see its severity rating, and learn how to block it with Fidro's API.
Stop fake signups
30%+ of free trial signups use disposable emails to exploit offers, inflating your user count and wasting infrastructure.
One API call
Add a single API call to your signup flow. Fidro checks against this entire blocklist and returns a risk score in under 200ms.
Updated daily
New disposable email services appear constantly. Our blocklist is refreshed daily so you never fall behind.
POST https://fidro.io/api/validate
{
"email": "user@tempmail.com"
}
// Response:
{
"risk_score": 85,
"recommendation": "Block",
"checks": {
"disposable_email": true,
"format_valid": true,
"mx_record_found": true
}
}What are disposable email domains?
Disposable email domains (also called temporary email, throwaway email, or burner email domains) provide short-lived email addresses that anyone can use without registration. Services like Mailinator, Guerrilla Mail, and Temp Mail let users receive emails at randomly generated addresses that self-destruct after minutes or hours.
For end users, disposable emails provide privacy when signing up for services they do not fully trust. For businesses, they create a real problem: users sign up with throwaway addresses to exploit free tiers, create multiple accounts, bypass email verification, and vanish without ever becoming reachable customers. If you want to check a specific address, try our free email checker.
Why blocking disposable emails matters
Disposable email signups waste engineering resources (servers, database rows, onboarding emails sent to dead addresses), inflate your user metrics with accounts that will never convert, and open the door to free-tier abuse. A single person can create dozens of accounts using different disposable domains to repeatedly claim trial offers or bypass usage limits.
The problem is growing. New disposable email services launch every week, and existing ones rotate domains to stay ahead of static blocklists. A list that was complete last month may already be missing dozens of new domains. That is why Fidro maintains a continuously updated database of 50,000+ disposable domains, accessible via API so your blocking stays current without any manual work.
How to block disposable emails in your app
The simplest approach is to validate email addresses at the point of entry: your signup form, checkout page, or lead capture. Add a single API call to Fidro's validation endpoint before accepting the email. The API checks the domain against the full blocklist and returns a risk score and recommendation in under 200ms.
For existing user bases, run a bulk check using the bulk email checker to identify accounts registered with disposable addresses. You can then flag those accounts for re-verification or restrict their access to prevent ongoing abuse. For a deeper look at detection strategies, read our guide on detecting disposable emails in your signup flow.
Common disposable email providers
While this list contains 5,000+ domains, a handful of services generate the majority of disposable email traffic. Knowing the biggest offenders helps you understand the scale of the problem:
- Mailinator - one of the oldest services, offers public inboxes that anyone can read without a password
- Guerrilla Mail - generates random addresses with a one-hour lifespan, popular for quick signups
- Temp Mail - slick UI that auto-generates addresses, widely used for trial abuse
- 10 Minute Mail - addresses expire after exactly 10 minutes, just long enough to verify
- ThrowAwayMail - no-frills service with a 48-hour inbox window
- YOPmail - persistent public inboxes (no expiry), often used for automated bot signups
- Dispostable - allows custom usernames, making addresses look more legitimate
- Maildrop - open-source alternative with public and private inboxes
Each of these services operates multiple domains (Mailinator alone uses 50+), and new domains appear constantly. A static blocklist cannot keep up. Browse the full list below, or use Fidro's domain checker to look up any domain instantly.
How to use this list
Browse the list below to check whether a specific domain is disposable. Each domain page includes a severity rating (1-5), risk details, and code examples for blocking it via Fidro's API. For automated protection, integrate the API into your signup flow. One API call checks the email against the full database and returns a risk score in under 200ms. To understand the difference between disposable domains and free email providers like Gmail, see our post on free vs disposable emails.
Browse the blocklist
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Get Started FreeFrequently Asked Questions
How many disposable email domains are in this list?
This page indexes over 5,000 of the most common disposable email domains. Fidro's full API database covers 50,000+ domains including less common and recently created services. The list is updated weekly as new disposable email providers appear.
Is this disposable email list free to use?
Yes. You can browse and search this list at no cost. For automated blocking via API, Fidro offers a free plan with 200 email validations per month. Paid plans start at $19/month for higher volumes.
How do I check if an email is disposable?
Search for the domain in the list above, or use Fidro's free email checker tool to validate any email address. The email checker runs the full validation suite including disposable detection, MX record verification, and risk scoring.
What is the difference between disposable and temporary emails?
They are the same thing. Disposable email, temporary email, throwaway email, and burner email all refer to short-lived email addresses created for one-time use. The addresses typically expire after minutes to hours and cannot be used for ongoing communication.
How often is this list updated?
The web list is refreshed weekly. The Fidro API database is updated daily through automated scanning, community reports, and honeypot monitoring. New disposable email services are detected and added within 24-48 hours of going live.
Can I download this list?
For the most current and comprehensive coverage, we recommend using the API rather than a static download. Static lists go stale quickly because new disposable email domains appear every week. The API checks against the full, continuously updated database in real time.