# Sendblue (iMessage) vs A2P SMS — GHL texting channel vetting

Source: creator transcript vetted 2026-08-12 ("sending SMS without A2P", GHL Marketplace tutorial). The mechanism is real; the value of this file is the risk framing the sales pitch glosses over.

## What Sendblue is

- GHL Marketplace app (~32k installs claimed) that routes business texting through P2P iMessage instead of carrier SMS.
- Setup path: install Marketplace app (agency view, admin) → select sub-accounts → Settings → Phone System → Additional Settings → Telephony Provider → switch Lead Connector → Sendblue iMessage → install Chrome extension (adds a virtual-iPhone widget wherever contacts appear) → Sendblue provisions "virtual iPhone" lines (they ask daily lead volume + desired area code).
- Workflows: delete SMS steps, replace with iMessage steps — copy/delays/triggers carry over 1:1.
- Conversations tab gains an iMessage panel next to SMS; full history + call recordings log back into GHL.
- Pricing: per phone line, unlimited texting/calling inside open conversations (vs per-message A2P SMS pricing).

## Why it bypasses A2P (the real mechanism)

A2P 10DLC is a CARRIER registration regime. iMessage doesn't traverse carrier SMS infrastructure, so registration genuinely doesn't apply. Switching SMS providers (Lead Connector / Twilio / TextGrid) never dodges registration because they all terminate on the same carrier channel — the fix is a different channel, not a different provider.

## The four risks the pitch glosses over

1. **TCPA still applies.** A2P is carrier policy; the TCPA is federal law covering ANY automated text to a phone regardless of channel. $500–$1,500 statutory damages PER TEXT, and plaintiff attorneys mine this. Cold-texting strangers who never opted in is the exact exposed use case — the source transcript itself warns against it ("wrong tool for cold blasting strangers").
2. **Apple's channel, Apple's rules.** P2P iMessage is governed by Apple ToS, not carrier rules. Commercial blast patterns get accounts killed. Sendblue mitigates via per-line throttles + sharding across virtual iPhones, but the infrastructure is one Apple policy update from dead. No delivery SLA — with A2P-registered SMS you get carrier-sanctioned delivery; here you're a guest.
3. **SMS fallback trap.** iMessage "falls back to SMS" for Android recipients — that fallback IS carrier SMS: either unregistered (filtered/blocked by carriers) or quietly needs A2P anyway. Android-heavy lists land right back on the channel you were avoiding.
4. **Volume caps.** Per-line P2P throughput is low by design; that's why Sendblue asks about daily volume and shards lines. Per-line pricing only beats per-message SMS when real conversations happen — for one-way blasts, A2P SMS is cheaper.

## Hard rule for Rob's campaigns

- Sendblue = CONVERSATION / NURTURE channel, never cold blast. Legitimate uses: post-opt-in follow-up from the funnel, post-walk-in nurture ("great meeting you — here's the field report"), database reactivation AFTER first contact via another channel.
- Cold-channel sequencing (agreed 2026-08-12): FB Ads first (fastest signal), cold email second (CAN-SPAM-compliant with unsubscribe), SMS last (compliance lift). iMessage slots in as step 2, after an opt-in from another channel — never step 1.
- Rich-media advantage: flyer PDFs as images, demo-line videos, voice notes play inline on the lead's phone without link-clicks — strong for post-walk-in follow-up.
- Unverified claim in source: "76% vs 37% response rate iMessage vs SMS" — creator's own numbers on his own list; treat as marketing, not data.