Analytics & Deliverability

Campaign performance

Measure opens, clicks, bounces, replies, and spam complaints.
Break down by device and geography; visualize engagement heatmaps.
Track trends over time and across sequences.

A/B testing

Test subject and body variants to identify winners.
Use equal splits and minimum sample sizes for significance.
Promote winners to default templates for future sends.

Domain health

Review SPF/DKIM/DMARC configuration and sender reputation.
Estimate inbox placement; get recommendations to improve deliverability.
Monitor authentication and throttling signals.