Upload a list. Download only the addresses that will land.
Upload a CSV, TXT or Excel file of up to 500,000 rows. Duplicates are removed before you pay, progress is live with a time estimate, and you can download what is ready at any time.
Bulk list cleaning
Download what is ready at any time, even while a list is still running.
Bulk list cleaning, done right.
CSV, TXT and Excel
Drop the file or paste addresses; we find the emails in it, preview them, and you start when ready.
Duplicates removed first
You are charged once per unique address, never for repeats.
Live progress and ETA
See valid, risky and invalid counts grow, with the time left.
Download anytime
Export what is already verified while the rest of the list runs.
Filter the export
Valid only, everything, or one status at a time, as CSV.
Private by design
Lists and results are deleted automatically 30 days after upload.
Three steps. No setup.
Upload your file
Or import contacts from HubSpot, Mailchimp or GoHighLevel.
We verify every address
8 checks each, with a live time estimate.
Download the clean list
Or sync the status back to your CRM.
Simple pricing
1 credit per unique address · duplicates and unknowns free.
- 100 free credits to start
- Every tool in every plan
- Pack credits never expire
Questions, answered.
The short version of how Confirmail works.
Addresses whose mail server does not answer come back as unknown and their credits are refunded when the list finishes.
Yes. You get an email with a download link, and a batch.completed webhook if you use one.
More tools in the same account.
Your next campaign deserves real inboxes.
Create your account and get 100 credits on us. No card, no commitment, results in seconds.