Email List Hygiene: The Metrics That Decide Whether You Stay Out of Spam
Hard bounces, complaints, engagement and spam traps: the four numbers behind list hygiene, the thresholds to act on, and a schedule that keeps a list from becoming a liability.
Hard bounces, complaints, engagement and spam traps: the four numbers behind list hygiene, the thresholds to act on, and a schedule that keeps a list from becoming a liability.