Free Email Verifier & Email Checker

Bulk email verifier

Bulk email verifier — validate a full email list before you send

Running an email marketing campaign or cold outreach sequence? Don't trust raw data — run the whole email list through bulk email verification first to filter out bounces, catch disposable email addresses, and protect email deliverability.

Why bulk email validation matters for email marketing

A single bad email list can burn your sending domain reputation. One send to 1,000 unverified addresses with 15% bounce rate will tank your email deliverability across every inbox provider — Gmail, Outlook, Yahoo. That's why every serious email marketing team runs email validation before the send.

Scrupp's bulk email verifier processes CSV uploads of 10,000+ rows in minutes, flags each row as valid email address, risky, disposable, or not found, and returns a clean export ready for your sender.

Verify email addresses via the email verification API

The email verification API gives programmatic access to the same engine — verify email addresses in-line at form submission, at CRM import, or at outreach-send time. One endpoint, JSON in, JSON out. Use the API as an email verification service for your own product if you need it.

What the email verifier returns for every address

• Status — valid, invalid, risky, or unknown. Tells you whether an email address exists on the mail server.
• SMTP code — 250 (accepted), 550 (rejected), 451 (temp fail). Raw verifier output for transparency.
• MX record — the host the email would route through. No MX = no delivery path.
• Catch-all flag — tells you whether the domain accepts all mail blindly.
• Role-based flag — info@, sales@, support@ addresses. Low engagement; most senders skip.
• Disposable flag — the disposable email address filter catches Mailinator-style temporary mailboxes.

Accurate email verification backed by real SMTP

The 10 free email verifier runs per day on this tool use the exact same accurate email verification engine that powers the bulk email validation service — same SMTP handshake, same MX lookup, same catch-all logic. The only difference is volume: bulk email verifier handles 1,000 validate email jobs per minute, the free tool handles one at a time.

Verify any email address in real time — how the email validator works

This online email validator lets you verify any email address in real time without sending an email to it. The real-time email verification process takes under 5 seconds per lookup and tells you whether the email is valid, without generating any fake email or dropping real email messages into someone's inbox. It's the cleanest way to check an email address without sending anything.

Behind the scenes: the verifier checks email addresses directly against the target email server via SMTP. It sees the same signals a real email service provider sees — MX config, HELO banner, RCPT TO response — and maps those to a clean verdict for you.

Email address verification for cold outreach and CRM hygiene

Email address verification is the last line of defence before outreach. A single email message sent to a bad email address hurts your sender reputation; 1,000 invalid email addresses in a batch is a bounced campaign. Scrupp's email validation checks run continuously on your existing email addresses so you can clean your email list before — not after — you discover deliverability drops.

Teams that send at scale often wire the accurate email checker API into their workflow: the email verification widget fires at CRM import, on form submit, before outreach triggers, or as a nightly cron on the whole database. 100 free email verifications / day on this tool covers the one-off cases; the paid bulk email checker covers the rest.

Free email address validation — when the free plan is enough

The free email checker on this page runs 100 email lookups per account on the free plan, with no billing card. Ideal for SDRs who want to verify a single email address per prospect, or freelancers who send 10-20 cold messages per week. Every single email verified here is a professional email address by default — we skip fake email address noise during the check.

When to use this free email checker vs bulk verification

• One-off lookup — verifying a single prospect's email before a cold reach-out. 10 free checks per day is plenty.
• Verifying a sign-up form — catching typos at submission. Use the email verification API for sub-second responses.
• Cleaning an imported email list — bulk email verifier handles full CSVs. Every valid email address exists and is deliverable when the run completes.
• Pre-send outreach hygiene — always validate email before a cold outreach campaign fires. Even a 5% bounce rate reduction protects sending reputation.