Check email addresses before you send.
Find invalid addresses, temporary inboxes and mailboxes that cannot be confirmed before your next email campaign.
Pay as you go. No subscription required.
Free email check
Up to 10 addresses. No account or credit card needed.
Your results
| Address | Result | What it means |
|---|
An unknown result is not an invalid address. Verification cannot guarantee delivery or inbox placement.
Check lists in your existing tools
Upload a CSV or JSON list, or use the API and webhooks to check imported lists, or the WordPress plugin to check addresses submitted through forms.
Built for a real mailing problem
ZBounce started inside a loyalty platform where customers uploaded thousands of addresses. Checking those lists before sending through Amazon SES substantially reduced bounces in that deployment.
Before you check
What does an uncertain result mean?
Some mail servers will not confirm a mailbox, or accept every address on the domain (catch-all). We show that uncertainty separately. It does not mean the address is invalid.
Does verification guarantee delivery?
No. It helps identify address problems. Sending policies, complaints and sender reputation can still affect delivery.
Can I check a larger list?
The free browser check accepts up to 10 addresses. For larger lists, upload your file in Check a list and connect your API key from a paid package. You can also use the verification API. After checkout, you receive an API key; no separate ZBounce account is required.
What happens to the addresses I submit?
They are sent to ZBounce for verification. Read the data processing notice for information about processing and storage.
Send with ZBounce.
The mailing workspace is temporarily unavailable while we improve it. Contact us about delivery. Email verification remains available.