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Warm up new conversations

Apple filters aggressive cold outreach. Start with users who opted in and reply quickly.

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Quotas

Shared-pool lines enforce daily limits on new conversations (first message to a never-messaged recipient). Replies do not count.

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Register recipients first

On shared lines, add users before messaging: 
sky skyline users add --phone +15551234567
Free plan: maximum 10 users per project.

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Avoid spam patterns

  • Do not blast identical copy to many new numbers in a short window
  • Space messages with typing indicators and human-paced delays
  • React and reply thread instead of sending duplicate bubbles

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Monitor error signals

app.on("error", (e) => logDeliverability(e.to, e.code, e.message));