Your prospect list shouldn't take hours to verify.
Say goodbye to bounces, spam traps, and wasted sends. Protect your sender reputation and maximize deliverability with real-time verification.
Verify 10,000 emails in 9–11 minutes for $10.
Buy12-Layer Deep Verification
Processing: Layer 1/12
Bank-level Encryption
99.9% Uptime
Auto-delete in 30 days
GDPR Compliant
See it in action
Upload a CSV on the site, or verify a column from the Google Sheets add-on
file.csv
Added on Just now
Valid Emails
0
96% of total
Invalid Emails
0
1% of total
Unknown / Catch-all
0
3% of total
Total Processed
0
0% processing...
Verification Summary
Verification Methods Applied
✨ Clean Your Email Lists Without Leaving Google Sheets
Extensions → Add-ons → Get add-ons → search OnlyValidEmails → Install. Then sign up, add credits, paste an API key, and verify.
OnlyValidEmails · Sheets add-on
A verifier like no other
Only Valid Emails makes it simple to clean your email lists. No technical skills needed—just upload and verify.
Lightning fast
Process 2,500 emails per minute. Verify 100k emails in under 40 minutes.
97% accuracy
Industry-leading accuracy on Gmail, Outlook, and all major providers.
Best pricing
Pay as you go. No subscriptions. Credits never expire.
Privacy first
Your data is encrypted and automatically deleted after 30 days.
Real-time results
Watch your verification progress live with instant CSV export.
Simple to use
Upload CSV → Verify → Download. That's it. No learning curve.
Just three simple steps
No technical knowledge required. Start verifying in seconds.
Upload your CSV
Drag and drop your email list. We'll automatically detect the format.
Watch the magic
We verify each email with SMTP, DNS, and syntax checks in real-time.
Download results
Get your clean list instantly. Only valid emails, ready to send.
Simple, transparent pricing
Pay as you go. No subscriptions. No hidden fees. Credits never expire.
Prices shown in USD. Checkout uses your local currency.
Growth
30,000 emails
Professional
50,000 emails
Enterprise
100,000 emails
Questions & answers
How accurate is the verification?▼
We achieve 97% accuracy on Gmail, Outlook, and all major email providers. We use multiple verification methods including SMTP, DNS, and syntax validation to ensure the highest accuracy.
Do credits expire?▼
No! Your credits never expire. Buy once and use them whenever you need. No pressure, no subscriptions.
Is my data secure?▼
Absolutely. All data is encrypted in transit and at rest. We automatically delete your uploaded files after 30 days. We never share your data with third parties.
How fast is the verification?▼
We process 2,500 emails per minute on average. A list of 100,000 emails typically takes around 40 minutes to complete.
What file formats do you support?▼
We support CSV and TXT files. Your file should have one email address per line or in a column.
Ready to clean your lists?
Join thousands of marketers who trust Only Valid Emails to keep their lists clean.
Start verifying for free →No credit card required • Start in seconds