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Deliverability, from the engine room.

Bounce rates, sender reputation, catch-alls, verification internals — written by the team that runs the checks.

Jul 18, 2026 · 6 min read

Catch-all emails, explained: what they are and how to verify them

No verifier can promise certainty on a catch-all domain — the server accepts everything by design. What you can get is calibrated risk instead of a false 'valid'.

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Jul 17, 2026 · 6 min read

How to reduce your email bounce rate (and keep it down)

Every bounce teaches mailbox providers to trust you a little less. The fix is structural, not cosmetic — stop bad addresses at the door and re-check the ones you already have.

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