Free email verifier
Paste addresses or upload a CSV. We check the format, the domain, and whether the mailbox exists — without sending anything. 100 free checks a day, no account needed.
We check the format, known throwaway providers, shared role addresses, common typos, and whether the domain has a mail server. Nothing is sent to these addresses.
What each status means
- Valid
- The mailbox exists and accepts mail. Safe to send.
- Invalid
- The address or domain doesn’t exist. Sending would bounce.
- Catch-all
- The domain accepts every address, so we score our confidence instead.
- Risky
- Unusual patterns that often bounce or belong to spam traps.
- Disposable
- A throwaway inbox. Nobody will read your email.
- Role-based
- A shared address like info@ — real, but replies are rare.
Verification is unlimited inside campaigns. Every lead you add is checked before sending, and addresses that fail verification are never charged.
Start freePart of Email verifier in Inboxed. Free, unlimited verification of every lead before it’s sent, and a free public checker.
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How does the free email verifier work?
It checks each address’s format, catches typos in common domains, flags role addresses and known throwaway domains, and looks up the domain’s mail servers. On servers that allow it, it also asks the recipient’s mail server whether the mailbox exists, without sending an email.
Is it really free?
Yes. 100 checks a day with no account. Inside Inboxed, every lead you add to a campaign is verified free and without a limit.
What does catch-all mean?
Some domains accept mail for every address, so no tool can confirm a single mailbox. Those addresses are marked catch-all so you can decide whether to send.
Do you store the addresses I check?
Addresses checked with the free tool aren’t saved. Leads you import into a workspace are stored in that workspace until you delete them.
Warm up today. Launch when you’re ready. Pay only for emails that send.
No subscription, no card to start. Connect a mailbox and warmup begins in under a minute.