Verify every email.
Grow your deliverability
The world's most advanced 14-layer verification engine — seven deterministic pipeline checks plus seven intelligence signals — cleans your list in under 2 seconds. Unlimited verifications for one flat $49/month. No per-credit fees, ever.
Connect the tools you already use — 18+ native integrations
Mailchimp
Brevo
HubSpot
Salesforce
Zoho CRM
Shopify
WooCommerce
BigCommerce
Google Sheets
Zapier
Make0
Verification layers
0B+
Emails verified
0.0%
Accuracy
<2s
Avg. response
0
Countries
0
Emails we ever sent
The world's most advanced
0-layer verification engine
Seven deterministic pipeline checks. Seven machine-grade intelligence signals. Fused into a single, trustworthy verdict in under two seconds — without ever sending an email.
Core pipeline · deterministic checks 01–07
Syntax validation
0 msFull RFC 5322 parsing rejects malformed addresses before they cost a single network call.
MX / DNS resolution
5–100 msResolves live MX records to confirm the domain can actually receive mail. Aggressively cached.
Disposable detection
instantScreens against 100k+ temp-mail and throwaway domains, refreshed continuously.
Role-based detection
instantFlags generic mailboxes — info@, support@, sales@ — that tank engagement and trigger filters.
Live SMTP handshake
1–5 sNegotiates with the mail server up to RCPT TO — confirming the mailbox exists without ever sending.
Catch-all detection
cached 24 hA cryptographic UUID probe exposes accept-everything domains, so you know exactly which results to trust.
Confidence scoring
instantA weighted model fuses every check into a 0–100 deliverability score and a definitive verdict.
Intelligence signals · layers 08–14
+7 signals most competitors never runSpam-trap shield
Detects honeypots and recycled trap domains that silently blocklist senders.
Free-provider flag
Identifies personal mailboxes (Gmail, Yahoo, Outlook…) across 90+ providers — gold for B2B lead scoring.
Domain health
Audits the domain’s SPF, DKIM and DMARC posture and grades its mail hygiene.
Domain age
Surfaces newly-registered, high-risk domains often used for fraud and abuse.
DNS blocklist screen
Cross-checks domains against live DNS blocklists before they poison your reputation.
Identity signal
Gravatar-backed real-human detection separates genuine users from synthetic accounts.
Quality & typo AI
Spots gibberish addresses and auto-suggests corrections — “gamil.com → gmail.com”.
Fourteen layers. One verdict.
Every signal feeds a weighted confidence model — you get a clean VALID / RISKY / INVALID answer with a 0–100 score, plus every layer's evidence.
Zero emails sent — by design. The SMTP layer terminates at RCPT TO and never reaches DATA. Recipients are never disturbed, and your sender reputation stays untouched.
Clean lists in three steps
No setup, no engineers required. Verify your first email in 30 seconds.
Add your emails
Paste a list, upload a CSV, call the API, or drop the widget on your signup form.
All 14 layers run
Seven pipeline checks + seven intelligence signals — syntax to SMTP to spam-trap — in under 2 seconds each.
Get a clean list + report
Export verified results with a deliverability grade, bounce prediction and AI insights.
Everything you need to keep lists clean
Single or bulk, API or no-code, dashboard or extension — verification wherever your emails come from.
Real-time & bulk — verify 1 or 10,000 at once
Instant single checks for signup forms, plus high-throughput bulk jobs with live progress, dedup and instant CSV export the moment it finishes.
Developer-first API
POST /api/v1/email/verify
{ "email": "sarah@stripe.com" }
→ { "status": "VALID",
"score": 98,
"isFreeProvider": false }List Health + AI report
A letter grade, predicted bounce rate and a plain-English AI briefing on how to fix your list.
Embeddable widget
One script tag validates emails on your signup form before they ever hit your database.
Chrome extension
Right-click any email on any page and verify it instantly, without leaving the tab.
Spam-trap & disposable defense
Catch honeypots, temp-mail and role addresses that silently wreck sender reputation.
Analytics & insights
Track quality trends, credit usage and week-over-week anomaly alerts on data decay.
Webhooks & integrations
Real-time delivery events, plus HubSpot, Zapier, Sheets and more — no glue code.
Team roles
Invite your team with OWNER / ADMIN / MEMBER / VIEWER permissions and audit logs.
GDPR & compliance
Encrypted at rest & in transit, data export/delete, DPA, and a full compliance suite.
Every bounce hurts. We stop them before they happen.
Mailbox providers punish senders with high bounce rates — throttling, spam-foldering, or blocklisting your domain. Clean your list first and you protect the sender reputation your whole business runs on.
- Lower bounce rate & higher inbox placement
- Protect domain & IP sender reputation
- Stop paying to email addresses that don’t exist
- Beat spam traps that silently blocklist you
Typical bounce rate
Representative results from teams cleaning purchased & aged lists.
Works with your entire stack
One-click connect, pull your contacts, verify, and write clean results straight back — across 18+ native integrations. Real-time verify-on-signup keeps every new contact clean automatically.
MailchimpBrevoHubSpotSalesforceZoho CRMShopifyWooCommerceBigCommerceGoogle SheetsZapierMakeMailchimp
ESPKlaviyo
ESPBrevo
ESPActiveCampaign
ESPMailerLite
ESPGetResponse
ESPConstant Contact
ESPHubSpot
CRMSalesforce
CRMPipedrive
CRMZoho CRM
CRMGoHighLevel
CRMShopify
E-commerceWooCommerce
E-commerceBigCommerce
E-commerceGoogle Sheets
SheetsZapier
iPaaSMake
iPaaSOne-click OAuth or API key · real-time verify-on-signup · no credit card
Stop bad emails at the door
Every new subscriber, contact or customer is verified and tagged the moment they're added — so invalid, disposable and trap addresses never pollute your list in the first place. Set it once, forget it forever.
- Webhook-driven — verifies in seconds, hands-free
- Auto-tag or suppress invalids before they cost you a send
- Protects sender reputation & deliverability 24/7
MailchimpHubSpotShopifyjane.doe@gmial.com
just subscribed
Typo domain caught → Invalid
tagged & suppressed · never emailed
Built for every team that emails
However you capture emails, VerifyBuddy keeps them clean.
Sales & SDRs
Verify prospect lists before you send. Land in the inbox, protect your domain, and stop wasting sequences on dead addresses.
Marketing
Clean every list before a campaign. Slash bounce rates, lift open rates, and keep your sender score pristine.
Developers
Drop-in REST API, webhooks and a signup widget. Verify at the point of capture in minutes — 7 languages of copy-paste snippets.
E-commerce
Verify customer emails at checkout and on signup. Fewer failed order confirmations, cleaner remarketing, real customers only.
Why teams switch to VerifyBuddy
Unlimited, flat-rate, and more thorough than the per-credit incumbents.
| Capability | VerifyBuddy | Others |
|---|---|---|
| Unlimited verifications | Flat $49/mo | Pay per credit |
| 14-layer verification engine (7 core + 7 intelligence) | Usually 3–4 checks | |
| Never sends a real email (RCPT-only) | ||
| Live SMTP + catch-all detection | Partial | |
| Bulk 10,000 / job with instant export | Extra fees | |
| API + embeddable widget + Chrome extension | API only | |
| List Health grade + AI deliverability report | ||
| GDPR, DPA & full compliance suite | Varies | |
| Self-hostable |
See what a clean list is worth
Drag the sliders to estimate the bad contacts VerifyBuddy catches — and what you save.
Bad contacts caught
4,365
New bounce rate
~0.3%
Est. yearly savings
$524
Estimate only — based on a 97% catch rate & typical wasted-send + deliverability cost per bad contact.
One flat price. Unlimited verifications.
No per-credit metering, no overage bills, no surprises. Just verify as much as you need.
Free
Kick the tyres
$0
- 100 one-time credits
- Full 14-layer engine
- API + dashboard access
- No credit card required
Unlimited
Everything, uncapped
$49/mo
- Unlimited email verifications
- Full 14-layer engine + AI deliverability report
- Bulk 10k/job, API, widget & Chrome extension
- Team roles, webhooks & integrations
- Priority support
Enterprise
For agencies & scale
Custom
- Everything in Unlimited
- White-label & reseller mode
- Dedicated IPs & custom SLA
- Self-hosting option
- Dedicated account manager
Fair-use applies to prevent abuse — real verification workloads are never throttled.
Loved by teams that live in the inbox
Rated 4.9/5 by marketers, founders and developers worldwide.
“VerifyBuddy took our bounce rate from 12% to 0.3%. The API integration took literally ten minutes and the difference in our campaigns was immediate.”
Sarah Mitchell
Head of Marketing, ScaleUp
“The 14-layer verification is the most thorough we’ve tested. Catch-all and spam-trap detection alone saved us thousands in wasted sends and protected our domain.”
James Kim
CTO, EmailFirst
“We switched from a per-credit tool. Better accuracy, better API, and unlimited verification at $49 is honestly a no-brainer for our whole SDR team.”
Priya Sharma
Founder, OutreachPro
“Unlimited changed how we prospect — no more rationing credits at month-end. We verify everything, all the time, and never think about it.”
Marcus Thorne
Growth Lead, Nimbus
“We finally stopped hitting spam traps. Our sender score recovered within two weeks and inbox placement is the best it’s ever been.”
Elena Rossi
Deliverability Manager, Rocketly
“Dropped the widget on our signup form in an afternoon. Fake and disposable emails just… stopped entering our database. Zero maintenance since.”
David Okafor
Eng Manager, Stacklane
Enterprise-grade by default
Your data, your control — verified without ever touching your contacts' inboxes.
We never send an email
Verification is probe-only (EHLO → RCPT). Your contacts are never messaged, ever.
AES-256 encryption
Keys, tokens and connections encrypted at rest. TLS in transit end-to-end.
GDPR & DPA ready
Workspace-isolated data, signed DPA, and a documented sub-processor list.
Auto data retention
Results auto-purge on a schedule. You control what we keep and for how long.
Frequently asked questions
How accurate is VerifyBuddy?
Our 14-layer engine — seven deterministic pipeline checks (syntax, MX/DNS, disposable, role-based, live SMTP, catch-all, scoring) plus seven intelligence signals (spam-trap, free-provider, domain health, domain age, DNS blocklist, identity, quality/typo AI) — delivers 99%+ accuracy without ever sending an email.
What exactly are the 14 layers?
Core pipeline (01–07): syntax validation, MX/DNS resolution, disposable detection, role-based detection, live SMTP handshake, catch-all detection, and confidence scoring. Intelligence signals (08–14): spam-trap shield, free-provider flag, domain health (SPF/DKIM/DMARC), domain age, DNS blocklist screening, Gravatar identity signal, and quality/typo AI with auto-correction. Every layer’s evidence is returned with the verdict.
Do you actually send emails to verify them?
No. We probe the mail server only up to the RCPT TO stage (EHLO → MAIL FROM → RCPT TO → QUIT). We never reach the DATA command, so no email is ever delivered and the recipient is never disturbed.
Is it really unlimited at $49/month?
Yes — one flat $49/month for unlimited verifications, with every feature included. No per-credit metering and no overage bills. A fair-use policy exists only to stop automated abuse; genuine verification workloads are never throttled.
What is a catch-all domain, and do you detect it?
A catch-all domain accepts mail for any address, so individual mailboxes can’t be confirmed by SMTP alone. We detect catch-all domains with a UUID probe and label those results clearly so you know which addresses to trust.
Can I verify in bulk and via API?
Absolutely. Verify a single email in real time, bulk-process up to 10,000 at once with instant CSV export, call the REST API (with webhooks and a streaming endpoint), drop the embeddable widget on a form, or use the Chrome extension.
Is my data secure and GDPR-compliant?
All data is encrypted in transit and at rest. We support data export and deletion, offer a DPA, and never share or resell your lists. See our Privacy Policy, GDPR and Security pages for details.
Do you offer refunds or self-hosting?
Yes to both — see our Refund Policy for the money-back window, and our Enterprise plan for a self-hosting option, white-label mode and a custom SLA.
Verify your first email in 30 seconds
Start free with 100 credits — then go unlimited for a flat $49/month. No card required.
We never send an email · GDPR-ready · cancel anytime