Clean your list from the tool it lives in
Pick the tool your contacts are in. Each page gives the export steps from that tool's own help page, the tool's bounce rule (or says none is published), what verification can and cannot tell you, and how to import the clean file back. The first 100 addresses are checked free.
Bounce rules read from each vendor's pages on 23 Oct 2026.
Email marketing platforms
CRMs
Cold email and sales engagement
Lead data, stores, events and forms
Looking for the shorter export-only guides? See verify an export. Newsletter platforms are on the newsletter creators page.