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Email Sending Frequency Calculator

Find the optimal sending frequency for your list size and engagement level.

Sending CadenceList HealthEngagementUnsubscribe Rate

Email Sending Frequency Calculator

Estimate the ideal send cadence based on your list engagement metrics and business goals.

Total active subscribers
Average across last 30 days
Per campaign average
Average revenue per campaign

Frequency Benchmarks

Industry data shows diminishing returns above certain thresholds by engagement level:

  • High engagement (25%+ open rate): Up to 5x/week sustainable
  • Medium engagement (15–24%): 3–4x/week optimal
  • Low engagement (under 15%): 1–2x/week to avoid list fatigue

Unsubscribe rates above 0.5% per send signal over-sending. Below 0.1% suggests room to increase frequency without damaging list health.

Related Calculators

Cloud Server for Email

Dedicated email infrastructure engineered for high-volume outbound operations and long-term deliverability.

INFRASTRUCTURE

OPERATIONAL NOTES

The Hidden Cost of Retry Pressure in High-Volume SMTP Systems
Inbox Placement Is a Lagging Indicator
What Breaks First When Volume Increases Too Fast
Why Shared IP Pools Fail at Scale
Separating Cold, Bulk, and Transactional Traffic at the Infrastructure Level
When NOT to Warm an IP

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