Clean your entire email list in one batch
Upload your whole list and let SpamCipher do the rest. We verify every address, remove duplicates, and sort your contacts into valid, invalid, and risky, so you can re-import a clean file before your next send.
Clean my list free
Run the whole list through at once
A list you have not cleaned in a while is full of dead weight: bounces, duplicates, and addresses that will get you flagged. Bulk cleaning runs the same checks as real-time validation, just across every contact in one pass.
- Upload your list. Drop in a CSV of any size or connect your email platform, and SpamCipher starts processing the batch.
- We clean the whole batch. Every address is verified, duplicates are removed, and contacts are sorted into valid, invalid, and risky.
- Download your clean file. Get one tidy export with a status on every contact, ready to re-import before your next campaign.
- Invalid and undeliverable addresses: removes the ones that bounce
- Duplicate contacts: collapses repeats into a single record
- Role and disposable accounts: flags info@ and burner addresses
- Catch-all and risky domains: sorts low-confidence contacts aside
- Spam traps and known complainers: keeps your list off blocklists
From stale to send-ready
Upload the whole list, clean it in one batch, and download a file you can trust.
Upload your list
Import a CSV of any size or connect your email platform. SpamCipher handles the entire batch in one go.
Clean the batch
We verify every address, strip out duplicates, and sort your contacts into valid, invalid, and risky.
Download clean results
Export one clean file with a clear status on every contact, ready to re-import into your tools.
Clean your list before your next send
Run your first batch free, no credit card required.
Sitting on a list you have not cleaned in months?
Run it through SpamCipher in one batch. You will see exactly which addresses are safe to keep, which to remove, and which to watch, without sending a single test email.
Your next campaign starts from a clean file, your bounce rate drops, and the inbox providers that were starting to doubt you get a reason to trust you again.
Cleaning lists at scale? Use the bulk API
For lists that grow every day, send batches straight to the SpamCipher bulk API instead of uploading by hand. Submit a job, and we process the whole file in the background.
Poll for status, then pull back a clean, sorted result, with SDKs for popular languages and a few lines of code.
It is the same cleaning your team runs in the dashboard, wired into your own systems so your lists stay fresh on autopilot.
Explore the APIHow to get the most from a clean list
Removing the clearly bad addresses is only the start. The risky contacts, catch-all domains, and role accounts are where judgment matters. Suppress the obvious junk, segment the uncertain, and keep emailing the people who actually want to hear from you.
Make cleaning a routine, not a rescue. Re-run dormant segments before a big send, clean any list you import from elsewhere, and your sender reputation, deliverability, and results all move in the right direction.
