Use Email Verifier to check whether an email address works before you send to it. Tomba checks the address without sending an email, then shows a status and a score.

Before you start

The Free plan has 0 verification credits, so you can't verify emails on it. To verify, choose a paid plan or a credit pack.

Verify an email

Step 1. Open Verify in the left menu.

Step 2. Type the address, such as [email protected], and click Verify.

The Email Verifier page with its email box, and arrows on the Verify button and the Try Demo button

💡 Tip: The Try Demo button runs a real check and uses real credits.

Step 3. Read the status and the score at the top of the result.

An Email Verifier result with its details open, and boxes on the Valid, score, Low Risk and Google Workspace badges and the Domain Type card

Step 4. Click Show details to see the checks behind the result. The link then reads Hide details. Click Show sources to see the public pages where the address was found.

The four check cards under a result, with boxes on the MX Records and Accept All rows

Verify from Domain Search or the extension

In Domain Search, click the shield icon next to an email. You only see it on emails that haven't been checked yet, and not on accept-all domains. A domain is the part of an address after the @. An accept-all domain accepts mail sent to any address.

Domain Search results with an arrow on the shield icon next to an email scored 61%

In the Tomba browser extension, click Verify next to an email.

What the results mean

Status	What it means	What to do
Valid	The mailbox exists and accepts mail.	Send.
Accept All	The domain accepts mail sent to any address, so we can't confirm one mailbox.	Send with care.
Invalid	The mailbox doesn't exist.	Remove it from your list.
Blocked	The mail server refused the check.	Try again later.
Disposable	It's a throwaway inbox, so Tomba doesn't check it.	Treat it as not deliverable.

The result also shows a risk level: Low Risk, Medium Risk or High Risk.

Show details opens four check cards:

Format Validation: Is the address written correctly, and does it look real, not random?
Domain Type: Is it a work address, a webmail address such as Gmail, or a throwaway inbox?
Server Status: Does the domain have a mail server set up? MX Records are the settings that say where its mail goes.
Deliverability: Does the domain accept all mail, and did the server block the check?

⚠️ Important: SMTP Check only tells you the domain has a mail server. It doesn't show whether the mailbox exists. The status does.

The confidence score

Every email in Tomba has a score from 0 to 100%. A higher score means the email is more likely to work. The color tells you the same thing at a glance:

Green means Valid.
Orange means Accept-all or Unknown. Unknown means Tomba couldn't get a clear answer.
Red means Invalid.

A score with a question mark, such as 61%, means Unknown, even if its color looks red.

A score isn't a guarantee. To get the status, verify the email.

💳 Credits: Each check uses 1 verification credit, and that includes accept-all and invalid results. Disposable and unknown results, including blocked checks, are free. Verifying the same address again before your credits reset is free. Viewing a phone number uses 5 search credits, only when a valid number is found.

Common questions

Does Tomba send an email to the address?

No. Tomba checks the address without sending anything, so the person never sees it. See How Email Verification works.

Why is there no shield icon next to an email?

The email has already been checked, or the company uses an accept-all domain.

What if a Valid email bounces?

Report it. If Tomba confirms the hard bounce, which means the email was refused for good, you get 1 search credit back. See Report a wrong email and claim a credit back.

Can I verify a whole list?

Yes. Upload it to Bulk Email Verifier. You can also work inside a spreadsheet with Google Sheets or Microsoft Excel.

Email Verifier and Confidence Score