How can frequency and volume spikes harm trust?

Frequency and volume spikes trigger provider defenses because spam campaigns often exhibit similar patterns:

Sudden volume increases look like compromised accounts or spam campaigns. A sender who normally sends 10,000 messages suddenly sending 100,000 raises immediate alarms.

Frequency spikes where recipients suddenly receive daily emails after months of monthly sends appear aggressive and often generate complaints.

Providers may throttle delivery, limiting how many messages they accept per hour. They may increase filtering until the anomaly resolves.

Even if the spike is legitimate (a major promotion or product launch), providers cannot distinguish it from spam behavior without historical context.

Volume spikes are like a ship suddenly arriving with ten times its normal cargo. Harbor authorities inspect carefully when something changes dramatically, even if the cargo turns out to be legitimate.