Email Verifier & Email Checker
Get 30% more valid emails
from your lists
We verify emails other tools can't, so you reach less crowded inboxes with better reply rates.
Trusted by over 10,000+ users
Your verifier is throwing away perfectly good emails
Most tools mark 20-30% of your emails as "risky" or "catch-all" because they can't verify them properly. You either skip those contacts or gamble. Either way you're losing reach.
Try Email Verifier for Free
Findymail verifies the emails others give up on
We verify emails in real-time, including catch-all domains, using proprietary advanced validation. You recover usable data other verifiers throw out, with lower competition in the inbox and higher reply rates.
Try Email Verifier for FreeVerify your email lists
in minutes
Upload your email list
Upload a CSV or XLS file with emails from any source: data providers, CRM exports, or scraped lists. You can also verify emails directly in Google Sheets.
Real-time verification happens automatically
Every email is verified the moment you submit it, not against an outdated database. Our verification includes:
- Proprietary catch-all email validation
- Syntax validation
- SMTP checks
- Spam trap detection
Get simple yes/no results
We tell you which emails are safe to send and which aren't. If it's a yes, we guarantee <5% bounce rate, and if it exceeds it, we refund your credits.
Download your verified emails
Download your results as CSV: deliverable emails and risky addresses, ready to use in your CRM or outreach tools.
Why Findymail's Email Verifier works differently
Other email verification tools
Stop at superficial checks (can't verify catch-all domains)
Put emails in 36 confusing categories
Mark many emails as "unknown" or risky
"Verified" emails that actually bounce
Made for marketing (newsletters, promotions)
Findymail
Unique deep verification: we validate catch-all emails other tools mark as risky
Tells you YES or NO if an email is safe
Best email verification coverage (70%+)
<5% bounce rate guaranteed, or we refund your credits
Made for sales (cold outreach, prospecting)
Need to build clean lists from scratch?
Use Intellimatch to find companies that match your ICP and get verified contacts in one step. Every email is verified as we find it, guaranteed <5% bounce rate.
Trusted by lead gen agencies, sales and growth teams
"From the start of my email outreach efforts, I got 0 bounced emails. I never got stats that good."
Nebojsa Savicic
Head of Sales, Plainly Videos
"I send directly to Findymail sourced emails with no additional verification and my bounce rate is under 2%. "
Eric Nowoslawski
Founder, GrowthEngineX
"Findymail is an excellent product. Works exactly as described and great support. I recommend it for cold emailers and anyone who needs to reach out to people's B2B E-mail Address!"
Jesse Ouellette
Founder of LeadMagic
Findymail delivers more usable emails, fewer bounces, and better deliverability.
Best
email coverage guaranteed
Reach decision makers others can't find with the most advanced email finding tech on the market.
<5%
bounce rate, guaranteed
The only provider with this guarantee. If we don't deliver, we refund your credits.
20-50%
more valid emails
Clay's independent benchmark ranked us #1 for email accuracy and coverage among 10+ competitors.
Verify your emails where you need to
Integrate Findymail's email verification into any workflow - spreadsheets, APIs, or automation platforms.
Work directly in Google Sheets
Use a simple formula to verify emails right in your spreadsheet with the Findymail Google Sheets add-on.
Email Verifier API
Integrate Findymail directly into your application and build custom verification workflows.
Learn about Email Verifier API
Custom workflows with Zapier
Connect Findymail with 3,000+ other applications and automate your verification pipeline.
And many more native integrations...
Push verified contacts directly to your favorite sales tools - Smartlead, Instantly, Lemlist, HubSpot, and more.
Get Started
Stop throwing away valid emails
Join thousands of teams using Findymail to verify the emails other tools can't, with a guaranteed <5% bounce rate.
<5% bounce rate guarantee
Hosted in the EU
SOC 2 Type 2
GDPR Compliant
Quick answers about Email Verifier
Here are the most common ones we get.
Findymail verifies emails in real-time at the moment you submit them, not against an outdated database. We guarantee a bounce rate under 5%. If your bounce rate exceeds 5%, contact support for a bounce analysis and we'll refund your credits. Independent testing by Clay ranked us #1 for email accuracy with 23% more valid emails than competitors.
Some domains (common at enterprise companies) don't confirm whether an email exists—these are called catch-all domains. Most tools mark these emails as "risky" or "unknown" and tell you not to use them. That means you lose 30% of your addressable market. Findymail has advanced verification that validates catch-all emails other tools give up on, so you can reach more decision-makers.
Your first 10 emails are on us with your free trial. After that just upgrade to purchase credits. You only pay for emails we successfully verify, failed verifications don't cost credits.
No. Email verification checks whether an email address is valid without sending any messages. Recipients won't know their email was verified.
Verification happens in real-time. Small lists (hundreds of emails) verify in seconds. Larger lists (thousands of emails) take a few minutes depending on size. We clean thousands of emails in minutes, even at scale.
Yes. You can verify lists of any size by uploading a CSV or XLS file. You can validate thousands of email addresses per month depending on your plan.
Yes. Findymail integrates natively with HubSpot, Salesforce, Pipedrive, Instantly, Smartlead, Lemlist, and more. You can also connect via Zapier, Make, or our API to build email address verification into forms, sign-up workflows, or contact imports.
Sending to invalid or risky emails increases your bounce rate, which damages your sender reputation and causes your emails to land in spam. Verifying emails before you send ensures you only contact valid addresses, keeping your bounce rate low and your sender reputation clean.
Our verifier removes:
- invalid or fake emails
- temporary/disposable email addresses
- risky and role-based addresses that affect delivery
Reach out through the live chat and we'll be happy to help.