Atlas Blue limits how many new contacts you can message per day, and paces them out over time. Apple monitors sending patterns closely, so these caps keep your number trusted and your messages in the main inbox instead of spam.
These limits apply only to contacts you've never messaged before from your Atlas Blue number. Once a contact replies, the limits no longer apply to them.| Time Period | New Contacts Allowed |
|---|
| Days 0–2 (first 3 days) | 10 per day |
| Days 3–7 | 25 per day |
| Day 8+ | 50 per day |
| Monthly cap | 5,000 per number |
| Spacing | 1 every 15 minutes |
In practice: If your campaign has 200 new leads queued up, Atlas Blue won't blast them all at once. It sends to one contact, waits 15 minutes, then sends to the next — automatically.
Atlas Blue treats contacts differently depending on whether a two-way conversation exists.| Status | What It Means | Rules |
|---|
| New Contact | You've never messaged this person | Daily caps, 15-min spacing, content restrictions |
| First Message Sent | Sent, but no reply yet | 15-min spacing + content restrictions still apply |
| Conversation Active | They've replied to you | No limits. Send anything. |
How the Message Queue Works#
When your campaign triggers messages to multiple new contacts at once, Atlas Blue queues them automatically and sends one every 15 minutes.If a message is temporarily blocked (e.g., rate limiting), it's re-queued for the next available window — nothing for you to do.
You can see scheduled send times for every queued message in the Sessions Explorer.
Messages to contacts who have already replied send immediately — no queue delay.
📈 Need more volume? Add more lines.#
Every limit above is per phone number. There's no limit on how many lines you can run.Need 500 new contacts a day? Run 10 lines.
Some customers operate 20+ lines across multiple territories.
Each new line gets its own ramp-up schedule and its own 5,000/month cap.
Talk to your Atlas account manager — new lines provision in under 24 hours.
Modified at 2026-04-23 18:13:33
