Kit

Connect Kit with emailcheckerr to verify every email address before it hits your campaigns. Email marketing for creators and small businesses to grow their audience. Pair it with our SMTP-grade verification to keep your sender reputation healthy, drive higher open rates, and protect your inbox placement.

Whether you import lists from Kit for a one-off cleanup or pipe new sign-ups through emailcheckerr in real time, you get the same disposable / role / accept-all detection, deep MX validation, and quality scoring used by enterprise teams — at a fraction of the cost.

How it works

Export your audience

In Kit, export your subscriber list (or a specific segment) as a CSV.

Run it through emailcheckerr

Upload to emailcheckerr — we'll flag invalid syntax, disposable addresses, role-based mailboxes, and catch-all domains. Most lists complete in under five minutes.

Re-import only deliverable contacts

Download the cleaned subset and re-upload to Kit. Suppress the risky ones, or unsubscribe undeliverable addresses to keep your sender reputation clean.