ActiveCampaign

Use segments and tags over separate lists - create engagement-based segments like "Opened in last 30 days" or "No engagement 90+ days" for targeted messaging

Enable predictive sending to automatically deliver emails when each contact historically opens and clicks

Build re-engagement automations with clear "stay subscribed" CTAs, then auto-unsubscribe non-clickers after 90+ days to protect deliverability

Use Goals in automations so contacts can jump ahead when they convert early, preventing over-emailing

Create saved content blocks for headers, footers, and CTAs to maintain brand consistency across all campaigns

Set up conditional content blocks to show different offers based on tags, location, or purchase history

Use Wait Until conditions based on behavior (visits pricing page) instead of arbitrary time delays