How to ensure accurate bounce tracking across ESPs?

Ensuring accurate bounce tracking across ESPs requires standardized classification and comprehensive suppression synchronization. Different ESPs may classify the same bounce differently, creating consistency challenges.

Establish classification rules that all systems follow. Define what constitutes hard versus soft bounce regardless of ESP. Use enhanced status codes when available for consistent interpretation.

Synchronize suppression lists across ESPs so bounced addresses are suppressed everywhere. Without synchronization, an address bouncing through one ESP might still receive mail through another. Global suppression infrastructure addresses this need.