| Provider | Source | Domains | Updated |
|---|---|---|---|
| emailfake.com | Curated | 3,683 | 10 hours ago |
| dropmail.me | Curated | 2,901 | 35 minutes ago |
| temp-mail.org | Curated | 452 | 6 days ago |
| unstablemail.com | Auto-discovered | 309 | 3 hours ago |
| mail2world.com | Auto-discovered | 170 | 18 days ago |
| emailondeck.com | Domain map | 162 | 1 day ago |
| yopmail.com | Curated | 128 | 22 hours ago |
| tempmail.ninja | Domain map | 96 | 9 days ago |
| moakt.com | Domain map | 95 | 2 hours ago |
| chatgpt.org.uk | Auto-discovered | 64 | 21 days ago |
| outsideserver.com | Auto-discovered | 57 | 21 days ago |
| spymail.one | Auto-discovered | 57 | 20 days ago |
| mailpwr.com | Auto-discovered | 51 | 20 days ago |
| kuku.lu | Domain map | 46 | 1 month ago |
| beget.com | Auto-discovered | 44 | 20 days ago |
Showing 1 to 15 of 370 providers
§ THE PRIMER
A temporary email provider hands you a free, disposable inbox instantly, with no registration required — an address built to expire. Most last between ten minutes and a few hours, which is where the nicknames come from: temp-mail, throwaway mail, burner mail, 10-minute mail. Mailinator, Guerrilla Mail, 10MinuteMail, YOPmail and Temp-Mail all work the same way. You land on the page, an address is already waiting, and nothing is asked of you. On several of them the inbox is public, so anyone who guesses the address can read what arrives in it.
The category is not inherently abusive. Developers use it to test signup flows without polluting a real mailbox, and plenty of people use it for a one-shot gated download they never want to hear about again. What made it a problem for site owners is trial farming and fake-account creation at volume: a burner address costs nothing, so the same person can take a free tier fifty times.
The distinction that matters for blocking is between the provider and the domain. A provider is the service. A domain is one of the hostnames it hands out, and the two are nowhere near one to one. A single provider in this directory can be responsible for thousands of separate hostnames, which is the whole reason a flat domain list stops working: block the brand name you recognise and you have blocked one hostname out of hundreds. Sort the Domains column to see how lopsided that distribution is.
§ THE METHOD
BounceCheck is an email verification service, and this directory is the disposable-domain layer behind it. Three sources feed it, cheapest first — each layer catches what the one above it misses:
The community-maintained disposable-email-domains repo, vetted before merge — about 8,000 domains, conservative and slow-moving.
New hostnames attributed to a known provider the day they appear, matched by shared MX host and resolved IP — no waiting on a public list.
Domains seen in live verification traffic that resolve to temp-mail infrastructure and belong to no known provider get flagged as candidates.
The community-maintained disposable-email-domains repository is the most conservative curated list, holding about 8,000 domains that are vetted before merge. Larger automated repos push past 100,000 entries and regenerate daily, trading precision for reach. We ingest from both ends of that spectrum and reconcile the disagreements rather than picking one list and trusting it.
The Updated column is per provider, not per list. A provider that rotated a domain yesterday shows yesterday's date, so you can see how active each service currently is instead of trusting a single site-wide “last refreshed” timestamp.
§ FALSE POSITIVES
gmail.com, hotmail.com, outlook.com, yahoo.com and icloud.com are not disposable email domains, and neither are forwarding aliases like simplelogin.io, duck.com or privaterelay.appleid.com. None of them appear in this directory. They are the five or six domains most often added to a blocklist by mistake, and each one costs real signups when it is.
| Domain | Disposable? | What it actually is |
|---|---|---|
| gmail.com | No | Free consumer mailbox, permanent |
| hotmail.com, outlook.com, live.com | No | Microsoft consumer mailboxes, permanent |
| yahoo.com, aol.com | No | Free consumer mailboxes, permanent |
| icloud.com, me.com | No | Apple consumer mailboxes, permanent |
| simplelogin.io, duck.com, addy.io, mozmail.com, privaterelay.appleid.com | No | Forwarding aliases that deliver to a real inbox |
| mailinator.com, guerrillamail.com, temp-mail.org, yopmail.com | Yes | Expiring public inboxes |
Free is not the same as disposable. gmail.com and hotmail.com are the most common mailbox domains on earth, and a form that rejects them rejects most of the consumer internet. If your signal is really “I want business addresses only,” that is a free-provider rule, and it belongs in a separate check from disposable detection so you can tune the two independently.
Forwarding aliases deserve the same care. An address from SimpleLogin, DuckDuckGo Email Protection, addy.io, Firefox Relay or Apple's Hide My Email is a permanent alias in front of a permanent inbox. The person behind it is reachable next month and next year, which is the opposite of a ten-minute inbox. They tend to be privacy-conscious users who read their mail, and blocking them is a false positive that costs you a real signup.
Gmail's plus-addressing ([email protected]) is also not disposable. It routes to the same permanent mailbox. If you are worried about one person farming a free tier with it, dedupe on the base address rather than rejecting the signup: the API returns a normalized_email field with the +suffix already stripped, so you can compare against that instead of writing the normalisation yourself.
§ IMPLEMENTATION
To block disposable emails on a signup form, send the submitted address to a detection API from your backend and reject the signup when the response marks the domain disposable. The check returns whether the domain is disposable, how the match was made, and which provider owns it:
{
"email": "[email protected]",
"normalized_email": "[email protected]",
"domain": "mailinator.com",
"is_disposable": true,
"matched_by": "domain_list",
"provider": { "slug": "mailinator", "name": "Mailinator" },
"checked_at": "2026-07-29T10:18:00Z"
}§ FAQ
Which domains actually count as disposable, how current this directory is, and how to check or block an address programmatically.
Still have questions? Contact us§ BLOCK THROWAWAY SIGNUPS
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