Free tool
Free email verifier
Verify an email address to see whether it looks deliverable: check if an email is valid by its format, what kind of address it is, and whether its domain takes mail. Before you send, not after it bounces.
Checks the format, the type of address and the domain's mail server. Nothing you type is saved.
What it checks
What the email verifier looks at
Checked here, free
- Format
- The address is written correctly, with no typo of a big provider like gmial.com.
- Type
- Company, webmail, a shared role inbox like info@, or a throwaway disposable address.
- Server status
- The domain has a mail server that accepts mail.
Checked in SendPath
- Email status
- Whether the mailbox itself exists, asked of the mail server, for a whole list at once.
The levels of email verification
“Verify an email address” can mean three different things, and each level catches different bad addresses:
| Level | What it finds | Example it catches | Where |
|---|---|---|---|
| 1. Format | Addresses that are written wrong | name@@company.com, a missing dot, gmial.com | Free, on this page |
| 2. Domain and mail server | Domains that cannot receive mail | A company that closed, a misspelled domain | Free, on this page |
| 3. The mailbox itself | Mailboxes that do not exist | A person who left, an old role address | List verification in SendPath |
Level 3 matters most for a campaign: most bounces come from mailboxes that no longer exist, which levels 1 and 2 cannot see. Even then, catch-all domains and servers that do not answer leave some addresses undecided, so no tool can promise a bounce-free list.
Why verify before you send
Every bounce tells mail providers you are sending to a list you did not check. Keep bounces low and your domain looks careful; let them climb and more of your mail goes to spam. The why emails go to spam guide lists this as one of the causes, and SendPath stops a mailbox when its bounces pass a safe limit.
When verification will not help
- A valid address that did not ask for your email. A real mailbox can still report you as spam. Verification checks that mail can arrive, not that it is wanted.
- Spam traps. A trap is a real address used to catch senders of bought or old lists, and a verifier cannot reliably tell it apart. The safe defence is a list you built and kept fresh.
- A weak message or missing DNS records. A clean list will not save mail with no SPF, DKIM or DMARC; see SPF for Google Workspace.
FAQ
Questions, answered
What is an email verifier?+
A tool that checks whether an email address is likely to receive mail before you send to it. The basic checks look at the address's format and its domain; deeper ones ask the receiving mail server whether the mailbox exists. Verifying a list before a campaign keeps bounces low, and bounces are one of the things mail providers judge you on.
How do I verify an email address without sending an email?+
Check three things in order: the address is written correctly, its domain has a mail server, and (the deeper step) the mail server says the mailbox exists. The tool above does the first two for free; list verification in SendPath does the third for a whole list.
Can any tool be certain an address works?+
No. Some mail servers accept every address and bounce later (called catch-all), some give no answer to a check, and mailboxes can be closed after you check. A verifier lowers the chance of a bounce; it cannot remove it.
How do I check if an email address is valid?+
Type or paste the address into the box above. The email checker looks at its format, whether it contains a typo of a big provider, what kind of address it is, and whether its domain has a mail server that accepts mail.
Is this email check tool free?+
Yes. You can check an email address here for free, with no sign-up.
How do I check a whole list of email addresses?+
Paste-and-check here works one address at a time. To check a whole list, including whether each mailbox exists, use list verification in SendPath.
Does a good result mean the mailbox exists?+
No. The free check looks at the address and its domain, not the mailbox, so a good result means it looks deliverable. Checking that the mailbox really exists is part of SendPath's free trial.
Why is a role address like info@ risky?+
It's usually a shared inbox read by several people or nobody, so outreach to it rarely gets a reply and is more often marked as spam.
Is the address I type stored?+
No. It's checked and the answer is shown; the address isn't saved or logged.
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