Campaign in cooldown mode
Campaigns auto-enter cooldown when safety thresholds are exceeded. This protects your sender reputation. Triggers: 1) Bounce rate exceeds 5% (default threshold). 2) Spam complaints reach the configured limit (default: 3 complaints). Cooldown lasts 24 hours minimum. After 24 hours, the system checks if metrics have improved — if yes, the campaign resumes automatically; if not, cooldown is extended. To fix: 1) Check your prospect list quality — remove invalid or catch-all email addresses. 2) Verify your DNS records (SPF, DKIM, DMARC) are correct. 3) Lower your daily sending volume. 4) If bounce rate was the trigger, enable Bounce Shield in Settings to pre-validate emails. The campaign status will show 'Cooldown' in orange on your Campaigns page.