A common mistake in email at scale is treating all recipients as if they live under the same filtering rules. They don’t. Gmail, Yahoo, Microsoft, and others react differently to volume patterns-even when the message is identical.
What “cadence” really means
Cadence isn’t just “emails per day.” It’s the distribution pattern of sends over time-per sender, per domain, and often per provider group. At scale, certain providers are more sensitive to sudden volume spikes from a single sender identity.
Why provider sensitivity matters
When a provider flags a sender as “bursty” or “unnatural,” you can see a shift in placement-sometimes into Promotions, sometimes into Spam, sometimes into subtle throttling and deferrals that compound.
What Recipient-Domain Cadence Control does
Recipient-domain cadence control means your send system is aware of the recipient domain and intentionally shapes distribution: Gmail recipients are paced differently than Yahoo recipients, and both are handled differently than long-tail domains.
Why this pairs with HotSwap
HotSwap Mail’s philosophy is simple: prevent degradation from becoming failure. Cadence control reduces the probability of triggering negative provider reactions, and HotSwap provides the live infrastructure adaptation needed if conditions begin to shift anyway.
At scale, “deliverability” isn’t a single knob. It’s a system of interacting constraints. Cadence control is one of the most underrated constraints-and one of the easiest to mishandle without a system designed for it.