Clean your list before you hit send
Upload your CSV and get every address back as safe to send, risky or invalid, with a 0-100 score. You send fewer bounces and protect your domain's reputation.
Drop the file, we find the column
CSV, TXT or XLSX. While it uploads we count the rows, spot the email column and pull the duplicates out.
Dead addresses push your mail into spam
Gmail and Outlook slow your sends and start routing your mail to spam.
One bad campaign hurts your domain's reputation. Recovering takes weeks.
People change jobs and mailboxes get closed. Last year's clean list isn't clean anymore.
Upload your list, download it clean
Address by addressYou know exactly who you can email
Trust scoreA score from 0 to 100 for every address
UploadCSV, TXT or XLSX. We find the email column for you.
DownloadGet only the sendable addresses, or the full scored report.
Bounce rate dropped from 4.8% to 0.4%
Measured on a team sending 40,000 addresses a month, after a single cleanup pass.
What a wrong address costs depends on your industry
SaaS
Fake signups use up free trials, and welcome emails reach nobody.
E-commerce
One typo at checkout and the order confirmation never arrives. The customer calls support instead.
Finance
Statements and legal notices have to reach the right inbox. Every bounce is a compliance risk.
Agencies
Before the first send to a client's list, see how many addresses are already dead.
Events
Tickets and entry codes go out once. If the address is wrong, the guest waits at the door.
Publishing
Dead subscribers inflate your email platform bill and drag down your open rate.
What sending teams tell us
Our bounce rate went from 12% to 0.8%, and our email platform bill shrank with it.
We wired up the API in half an hour. Now we check addresses right on the signup form, and fake signups are down 85%.
We cleared the dead addresses out of our donor list and our email costs fell 40%.
Why CleanBounceList?
Works with the tools you already use
Import contacts, verify in bulk, write the result back as a tag.
Klaviyo
ActiveCampaign
Constant Contact
Instantly
Smartlead
ApolloYour list doesn't stay with us
Raw addresses are deleted 30 days after upload, together with the report and results. Want it gone sooner? Delete the list yourself in one click. No list is ever used for training or shared.
Read the privacy policyPay for what you use
1 credit = 1 address checked. Pay once, use them whenever you need.
Checking stops when credits run out, so there is no surprise invoice. You can top up in one click.
Frequently asked questions
Each unique address we check costs 1 credit, even when the result is Unknown. Duplicates in the list are free. If a row can't be checked because of an error on our side, its credit comes back.
The raw list is permanently deleted 30 days after upload, together with the report and results. You can delete it yourself any time before that.
Measured accuracy on known mailboxes is 99.2%. Addresses where no certain result is possible are reported as "risky".
A 12,000-address list finishes in about 40 seconds on average. 95% of single checks return in under 2 seconds.
Yes, for now. Signup opens by invitation. Write to us and we'll queue you for access.
Yes, unused credits carry into the next period. Checking stops when credits run out, with no surprise invoice.