Free email checker
Paste one email address or a whole list (up to 500). The checker finds broken addresses, domain typos like gmial.com, throwaway domains, and domains that cannot receive email.
What this checker tests
| Check | What it catches |
|---|---|
| Format | Missing @, spaces, double dots, commas, characters most providers reject, and the 64 and 254 character limits |
| Typos | Near-misses of popular domains (gmial.com, yaho.com, hotmial.com) and endings like .con |
| Domain | Domains that do not exist |
| Mail server (MX) | Domains that cannot receive email |
| Throwaway domains | Nearly 10,000 known disposable email domains, from the public-domain disposable-email-domains list |
| Role and free addresses | Shared inboxes like info@ and sales@, and free providers like Gmail and Yahoo (shown as notes, not errors) |
What it does not test
This free checker does not contact the mail server to ask whether the individual mailbox exists. That step needs a server with a good reputation, because mail servers often block ordinary computers that try it. A result of "Looks valid" means the address is well formed and its domain accepts mail; it does not prove the person's mailbox is open.
For a full mailbox check of a list before you send, use a verification service. See how mailbox checks work and how the main services compare.
How to read the results
- Looks valid Correct format, real domain, and the domain accepts email.
- Possible typo The domain looks like a misspelling of a popular one. Check with the person.
- Disposable A known throwaway service. The address will stop working soon.
- Invalid Broken format, a domain that does not exist, or a domain with no mail server.
- Unknown The lookup did not finish. Try again.
Questions people ask
- Is this email checker free?
- Yes. It is free, with no sign-up, for up to 500 addresses at a time.
- Does it send an email to the address?
- No. Nothing is sent to the address, and the address itself never leaves your browser. Only the domain is looked up in public DNS.
- Why does a real address show as "Possible typo"?
- Some real domains are one letter away from popular ones. If you are sure the address is right, you can ignore the warning.
- Can it tell me if a Gmail address exists?
- It confirms gmail.com accepts email and checks the address format, but not whether that specific Gmail account exists. That needs a mailbox check from a verification service.