Optimizing Follow-Up Calls in Large-Scale Email Campaigns

When you’re running a large-scale email campaign for an enterprise client, how do you coordinate with their sales reps to make sure they’re calling the right prospects first? More broadly, what’s your process for prioritizing follow‑up calls while running massive email campaign? Relying on opens or clicks feels outdated in 2025—it can hurt your deliverability, and those engagement signals are often misleading. What metrics or workflows have you found that actually work?