Is the Searlo email verifier free?

Yes. The email verifier is completely free to use online — no account, credit card, or download required. Enter an address and get an instant deliverability verdict.

What checks does the email verifier run?

It validates syntax (RFC format), confirms the domain has valid MX records, performs an SMTP mailbox check, and flags disposable/temporary addresses, role-based addresses (like info@ or support@), and catch-all domains.

Does a 'valid' result guarantee the email will be delivered?

Verification dramatically reduces bounces by catching invalid, fake, and risky addresses before you send. But catch-all domains and greylisting mean no checker can guarantee 100% delivery without actually sending a message.

Can I verify email lists in bulk or via API?

Yes. For high-volume or programmatic verification, Searlo exposes an email verification API so you can validate addresses inside your own signup flow, CRM, or outreach tool. See the docs or contact us for access.

Do you store the email addresses I check?

No. Addresses entered into the public tool are used only to run the live verification and are not saved or added to any list.

Searlo

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Verify deliverability before you hit send.

Clean lists, reduce bounces, and keep your sender reputation sharp. Get instant deliverability signals and see how Searlo powers high-volume outreach teams.

GTM teamsRevOpsOutbound agenciesLifecycle marketing

Launch-ready lists

Validate new leads before you scale outreach.

Deliverability lift

Reduce bounces and protect sender reputation.

Mailbox insight

Status, domain, and MX signals in seconds.

Built for modern teams

Need bulk verification, enrichment, or webhooks? The Searlo Email Intelligence API powers CRM syncs, GTM pipelines, and lifecycle automation at scale.

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Live previewExample output

Deliverable[email protected]

Domain

company.com

Mailbox

valid

Google

Risk

low

What is the Searlo email verifier?

The Searlo email verifier is a free online tool that checks whether an email address is real, correctly formatted, and able to receive mail — before you ever hit send. Paste an address, run the check, and get an instant verdict on its deliverability so you can clean lists, cut bounce rates, and protect your sender reputation.

How email verification works

Syntax check— confirms the address follows valid email format (RFC 5322).
Domain & MX records — verifies the domain exists and is configured to receive email.
SMTP mailbox check — pings the mail server to confirm the specific mailbox exists.
Risk flags — detects disposable/temporary addresses, role-based addresses (info@, support@), and catch-all domains.

Why verify email addresses?

Reduce hard bounces that damage your sender reputation.
Stop fake and mistyped signups from polluting your database.
Improve deliverability and inbox placement for real campaigns.
Save money by not paying to email addresses that don't exist.

Frequently asked questions

Is the Searlo email verifier free?: Yes. The email verifier is completely free to use online — no account, credit card, or download required. Enter an address and get an instant deliverability verdict.
What checks does the email verifier run?: It validates syntax (RFC format), confirms the domain has valid MX records, performs an SMTP mailbox check, and flags disposable/temporary addresses, role-based addresses (like info@ or support@), and catch-all domains.
Does a 'valid' result guarantee the email will be delivered?: Verification dramatically reduces bounces by catching invalid, fake, and risky addresses before you send. But catch-all domains and greylisting mean no checker can guarantee 100% delivery without actually sending a message.
Can I verify email lists in bulk or via API?: Yes. For high-volume or programmatic verification, Searlo exposes an email verification API so you can validate addresses inside your own signup flow, CRM, or outreach tool. See the docs or contact us for access.
Do you store the email addresses I check?: No. Addresses entered into the public tool are used only to run the live verification and are not saved or added to any list.