How to configure sending hours

Set the window and the pacing inside it.

Updated Sep 10, 2026 1 min read

Steps

  1. Schedule tab → Sending window.
  2. Set the start hour and end hour. The Next sending window preview shows when the campaign may next send.
  3. Under Pacing, set the minimum delay between emails in minutes and an optional random extra delay.

Important notes

  • Pacing spreads sends across the window instead of firing a block at the top of the hour, which is better for reputation.
  • A narrow window plus a low hourly limit can make it impossible to reach your daily limit. The Throughput estimate card shows the maximum currently achievable.

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