Deliverability

You send 50,000 emails a month. How many actually land in the inbox? If you’re only tracking open rate, you’re missing the metric that really matters.
Deliverability is decided before the click: sender reputation, contact list quality, bounce management, blacklist exposure, and anti-spam filter behavior. A single weak link is enough to drag down your entire performance.
This category covers every factor that influences inbox placement: sender score diagnostics, list cleaning, spam trap handling, deliverability metrics tracking, and best practices for maintaining a stable inbox placement rate over time.
An undelivered email generates zero revenue. Might as well start there.