You can run the entire data-quality side of your outbound from 2 tools. LeadMagic now handles catch-all verification natively. Here is the consolidated stack we run: 1. Enrichment waterfall • Icypeas: first-pass email finder • Prospeo(.)io: second-pass, their new database pulls 55-60% more leads than the majors • BetterContact: aggregator of ~25 providers, picks up obscure domains • Findymail: final sweeps for everything the first 3 miss Icepeas and Prospeo serve as a cheaper alternative to pulling everything with BetterContacts. Findymail and Leadmagic are great providers that aren’t part of the BetterContacts waterfall, so we add them in afterwards. 2. Validation layer • First layer comes from the provider that finds the email. • LeadMagic: double-verifies every email, now handles catch-alls without a separate vendor • Weekly refresh cycle keeps the list fresh across the full campaign window 3. Bounce rate monitoring • Target: sub-1% bounce rate. (up to 3% is fine) • 90% of our campaigns sit below 1% with this setup • Any mailbox hitting 5% gets pulled into inbox-placement testing 4. Tool consolidation wins • One vendor for validation instead of two • One cleaner API layer across the stack • Weekly data refresh built into the pipeline • One weekly cadence check instead of ad-hoc validation sweeps Verifying once is no longer enough. Double verification + a weekly refresh is the deliverability standard we hold every client campaign to.