Spam TrapsList HygieneSender ReputationEmail Validation Estimate your spam trap exposure risk based on how your list was built and maintained. List Acquisition Method Double opt-in (confirmed) Single opt-in (form submit) Imported / purchased list Scraped or unverified Average List Age (months) Last List Validation (months ago) Re-engagement Campaigns Run Yes — inactive subscribers suppressed No — full list still mailed Assess Risk