How to detect reputation loss before deliverability drops?

Early detection requires monitoring leading indicators before deliverability visibly suffers:

Engagement trend decline is often the first sign. Falling open and click rates, especially among previously active recipients, signal growing problems.

Postmaster tool scores may drop before inbox placement suffers. Watch for reputation trending from High toward Medium.

Delivery error increases in Postmaster Tools can indicate throttling or deferral before hard blocks occur.

Complaint rate creep even within acceptable thresholds warns of brewing trouble. A rate moving from 0.05% to 0.08% demands attention.

Bounce rate changes suggest list quality issues that will eventually affect reputation.

Early warning signs are like storm clouds on the horizon. Experienced captains notice the changing sky and adjust course before the storm arrives.