How to start warmup

Turn warmup on for a mailbox and watch it ramp.

Updated Sep 10, 2026 1 min read

Steps

  1. Warmup starts automatically when you connect a mailbox with Start warmup enabled.
  2. To manage it later, go to Warmup (Inbox Warmup).
  3. Find the mailbox row and start, pause or resume warmup there.
  4. Open its settings to change the ramp.

Important notes

  • Start warmup the day you create the mailbox, not the day before your campaign.
  • Warmup keeps running while campaigns send. It is not something you finish and switch off.

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