Reputation is everything
Mailbox providers decide inbox vs spam based largely on your sending reputation. High bounce and complaint rates destroy it.
Verify before you send
The single highest-leverage move is verifying addresses before they enter your sending list. Removing invalid and disposable addresses up front keeps bounce rates low.
Ongoing hygiene
Re-verify dormant segments periodically — addresses go stale. Verix's bulk tool makes cleaning an existing list a one-CSV job.
Ready to clean your data? Try Verix free — 50 verifications a month, no card required. Verify email, phone and IP risk in one call.