· New feature
Leave out contacts you already have
Upload your existing customer or do-not-contact list when you build a list. We leave those contacts out, and you don't pay for them.
The upload is optional. Your file never leaves your browser. The browser turns each email, phone and domain into a one-way fingerprint, and only the fingerprints reach us.
We match against them, drop the overlap from your order and price, then delete the fingerprints once your list is delivered.
Files up to 50,000 entries or 5 MB work on the page. For anything larger, email us.