Klaviyo List Cleaning: Validate Your List Before You Suppress or Re-Import
Export your Klaviyo list or segment, verify it with CampaignKit, and build a suppression file for Klaviyo's invalid and risky addresses.
How to remove invalid, inactive and risky addresses from your email list, how often to do it, and the steps in Mailchimp and Klaviyo.
6 articles
Export your Klaviyo list or segment, verify it with CampaignKit, and build a suppression file for Klaviyo's invalid and risky addresses.
"Cleaned" means a contact hard bounced or soft bounced too often in Mailchimp. Bounce thresholds, billing impact, and how to delete or resubscribe them.
Understand the four types of spam traps, how they infiltrate your list, how to detect exposure, and the operational practices that keep you off blocklists.
Learn how to design and implement a sunset policy that removes inactive subscribers systematically, protecting sender reputation and inbox placement.
Learn what "cleaned" and suppression list mean in Mailchimp, and how to validate contacts before import so fewer bounce and get auto-removed.
Clean your email list before every send. Use free verification, bulk CSV upload, and score-based results to cut bounces and protect deliverability.