Deliverability04
The math of safe volume
At 40 sends per mailbox per day, 10,000 weekly emails need roughly 50 active mailboxes across 10–15 domains. Rotation distributes each campaign across that fleet so no single sender carries risk alone.
Rotation with guardrails
Good rotation is health-aware: senders with rising bounces get less traffic automatically, and new mailboxes only join once warmup completes. CloudJet’s sender protection handles both.
Key takeaway
Deliverability is a habit, not a setting. Automate the guardrails, watch the signals, and scale only as fast as your reputation allows.