Skip to main content
Apple can throttle or restrict your iMessage line if it behaves like a spam sender — most often from cold, high-volume, identical outreach to people you’ve never contacted. A restricted line still receives messages and your existing conversations keep working, but Apple stops resolving new / cold outbound recipients, so messages to strangers start failing or downgrading. The fix is prevention: keep sends personalized, warmed-up, consented, and triggered — not blasted.

​
What a restriction looks like

  • Messages to existing conversations keep delivering normally.
  • Messages to new / cold recipients start failing, downgrading to SMS, or silently not resolving.
  • You may see a rise in failed/fallback statuses concentrated on one line.

​
What causes it

Apple’s spam systems react to sender behavior, not to Tuco. The main triggers:
  • Cold outreach at volume — messaging many people who never opted in.
  • No warm-up — a brand-new line sending at full volume on day one.
  • Identical, templated blasts — the same message fired to a large list (this is why iMessage should be triggered, not blasted).
  • High daily volume relative to the line’s history.
  • Reports — recipients marking messages as junk.

​
What Tuco does to protect you

Tuco is built to keep lines healthy:
  • Per-line rate limits and warm-up so one send can’t torch a line’s reputation (rate limits).
  • Spam monitoring that flags rising failure rates as risk before a ban (spam monitor).
  • Health checks that detect a down or degraded line and route around it.
  • Availability checks so you don’t burn sends on non-iMessage numbers.

​
How to recover

A restriction is not always permanent, but recovery is not instant and isn’t guaranteed:
  1. Stop the risky sending immediately — pause cold/high-volume campaigns.
  2. Reduce volume and warm up — return to a low, personalized cadence.
  3. Clean your audience — only message consented, opt-in contacts; honor every STOP.
  4. Contact support (support@tuco.ai) — we’ll review the line and advise on next steps.

​
How to avoid it in the first place

  • Personalize every message — no identical mass blasts.
  • Trigger sends off events (new lead, reply, stage change) rather than dumping a static list.
  • Warm up new lines gradually; add lines to scale instead of pushing one harder.
  • Only message people who opted in, and honor opt-outs fast.

​
Frequently asked questions

Almost always sending behavior that looks like spam — cold, high-volume, or identical messages to people you’ve never contacted. Apple restricts the line’s ability to resolve new/cold recipients while leaving existing conversations working.
Not necessarily, but recovery isn’t instant or guaranteed. Stop the risky sending, reduce volume, warm up, message only consented contacts, and contact support.
Send personalized, event-triggered messages to consented contacts within your per-line limits, warm up new lines, and never blast identical messages to a big cold list.
Tuco’s spam monitor flags rising failure/risk rates and health checks detect degraded lines, so you get early signals — but you’re responsible for the sending behavior that drives the risk.

Bulk iMessage — safely

Why iMessage should be triggered, not blasted — and how to reach a list without getting flagged.