How do you find each subscriber’s ideal cadence?

Frequency preference segmentation respects that different people want different amounts of email from you.

Ask directly. Preference centers let subscribers choose: daily digest, weekly roundup, monthly highlights, or important updates only. Honor what they select.

Infer from behavior. Someone who opens every email can handle more. Someone who opens one in ten is telling you to send less. Build engagement-based frequency tiers.

Test systematically. Split your list and send at different frequencies. Track engagement rates, complaint rates, and unsubscribe rates by cohort. Let data reveal the optimal cadence for each segment.

Implementation approaches:

Frequency cap rules: "Don't send more than X emails per week to segment Y."

Digest consolidation: Combine multiple messages into a single email for lower-frequency segments.

Priority filtering: Only send top-priority content to infrequent segments; all content to high-frequency segments.

An old lighthouse keeper's wisdom applies: the most reliable signal isn't the brightest or most frequent, it's the one that arrives when expected. Match your cadence to what each subscriber anticipates, and your signal stays clear.