BounceProtect

Clean your email lists before you send

BounceProtect × Klaviyo

Email validation for Klaviyo

Klaviyo tracks your bounce rate closely. One dirty import can suppress your sending domain across their platform. BounceProtect cleans your lists before they go in — so every send starts from a clean baseline.

Clean your Klaviyo list free →View pricing

Why Klaviyo users clean lists before importing

Klaviyo's deliverability scoring is aggressive. Here's what gets you flagged:

  • Klaviyo will warn — then suppress — your account if bounce rate exceeds 0.08% (Gmail threshold)
  • Disposable emails inflate your list size but never convert
  • Role accounts (info@, sales@) are shared inboxes — low open rates hurt deliverability scoring
  • Catch-all domains accept everything at the server level — SMTP alone can't tell if the mailbox exists
  • New domains (under 90 days) are a spam signal — even if the mailbox exists

How it works

1

Export your Klaviyo list

Download your segment or full list as a CSV from Klaviyo.

2

Upload to BounceProtect

Drop the CSV into BounceProtect. Results in under 60 seconds for most lists.

3

Filter by Send Recommendation

Keep SEND emails, review caution emails, and suppress DO NOT SEND before importing back.

4

Re-import cleaned list

Upload the cleaned CSV to Klaviyo. Your bounce rate drops immediately on the next send.

Start with 100 free validations

No credit card required. Upload your Klaviyo export and see your list health score in under a minute.

Clean your list free →