Why Your Business Texts Aren't Delivering (and What Actually Fixes It)
TL;DR
Business texts that show as sent but never arrive are almost always being filtered by the carriers. Unregistered 10DLC traffic has been blocked outright since February 1, 2025, and registered traffic still gets scored on content and behavior, with no bounce and no error when it fails. Diagnose in order: registration status first, then content, then send pattern. If the job of your messages is starting conversations and you keep landing back in the filter, the durable fix is a channel that does not ride the carrier A2P rails at all.
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Why are your business texts not delivering?
Carriers filter SMS silently. Messages go to the carrier and show as sent, but carriers drop them without notification. No bounce, no error, just silence. Falling reply rates are the first tell.
This happens two ways: texts never worked (registration issue) or worked for months then stopped (content or velocity flag). These have different fixes, so diagnose which one first.
The silent drop, step by step
- 1Your platform hands off the messageDashboard: sent
Sent and delivered are both recorded at the handoff to the carrier, before any screening has happened.
- 2The carrier screening layer scores itDashboard: sent
Content, links, volume patterns and recipient behavior are scored on every send, registered or not.
- 3The carrier drops itDashboard: sent
Unregistered 10DLC traffic has been blocked outright since February 1, 2025. Registered traffic that patterns like spam is filtered.
- 4Nobody is toldDashboard: sent
No bounce, no error, no notification to you or the recipient, and no appeal in the loop.
How to tell which failure you have
Check symptoms in order. Error codes are fastest: Twilio 30034 means unregistered A2P 10DLC; 30007 means content filtering. GoHighLevel and most SMS platforms use the same rails, same failure modes.
| Symptom | Likely cause | What to check |
|---|---|---|
| Nothing has ever delivered from this number | Unregistered or mid-registration 10DLC traffic, blocked outright | Registration status in your platform; Twilio error 30034 |
| Delivered for months, then dropped off a cliff | Content or behavior flag on a registered campaign | Recent copy changes, links added, opt-out spike; Twilio error 30007 |
| Small tests deliver, full sends don't | Velocity filtering on burst volume | Messages per minute against your brand's throughput tier |
| Delivers on some carriers, dies on one | Carrier-specific filtering or a carrier-side block | Delivery rates split by carrier, if your platform reports them |
| Messages with links fail, plain ones deliver | Link-based filtering, especially shared shorteners | Swap to a branded domain, retest |
What carrier filtering actually is, in plain language
Since February 1, 2025, major US carriers block unregistered 10DLC traffic outright. Registration with The Campaign Registry buys a lane on the rails. It does not guarantee delivery.
Registered traffic scores on content, links, volume, and recipient behavior on every send. An opt-out spike, shortened URL, or volume burst can fail a compliant campaign silently with no appeal.
The deeper mechanics are in our carrier filtering glossary entry.
What registration buys and what it does not
Feb 1, 2025
Unregistered 10DLC blocked outright
The major US carriers stopped throttling unregistered traffic and started blocking it.
Every send
Registered traffic is re-scored
Content, links, volume patterns and recipient behavior, on each message.
0
Notifications when it fails
No bounce, no error and no appeal, by design.
The fixes, in order of effort
If SMS is right for you, fix in this order and retest one variable at a time.
First: if unregistered, fix that. Brand registration runs 1-5 business days, campaign review 10-15 days. Our A2P 10DLC hub covers process, costs, and common denials.
Second, content: use branded domains, include sender ID and opt-out. Third, pattern: space sends over hours, respect throughput, watch opt-out. Full guidance: deliverability guide.
When the fix is the channel, not the campaign
Some traffic keeps failing the filter no matter how clean. Outbound sales to cold lists are what A2P models exist to suppress. That's a channel mismatch, not a deliverability problem.
An iMessage line moves traffic off the carrier A2P path. Delivery runs through Apple's service, so the silent drop becomes visible: either reachable over iMessage (confirmed before send) or fallback to RCS then SMS.
Transactional traffic (passcodes, alerts, reminders) belongs on registered SMS. Conversation-seeking traffic is covered in how to text leads without A2P registration.
Where Blue Reacher fits
Blue Reacher runs iMessage lines: unlimited iMessages (50 opted-in / 30 cold new contacts/day) at $249/mo, availability checks, delivery states, RCS then SMS fallback, STOP synced to CRM. Native in GoHighLevel.
You already paid for the lead. The channel is why they never replied. Book your Blue Funnel Map, a 15-minute call, and we'll text you a demo from a live line so you watch it deliver in real time.
Frequently asked questions
Why does my dashboard say delivered but customers get nothing?
Sent and delivered are recorded when your platform hands the message to the carrier, before carrier filtering. No bounce, no error by design. Tell: reply rates collapse while send metrics look normal. Check registration status first, then recent content changes, then correlation with send volume.
What do Twilio errors 30007 and 30034 mean?
30034 means unregistered A2P 10DLC; carriers block unregistered traffic outright since February 1, 2025, so registration is the only fix. 30007 means the carrier filtered a message on content or behavior. 30034 is paperwork; 30007 is the scoring models disliking your traffic.
Does registering for A2P 10DLC stop the filtering?
No. Registration lets you send; filtering continues on every send. Carriers score content, links, volume patterns, and behavior continuously. Compliant campaigns still fail silently when they pattern like spam. Registration plus clean content plus pacing is the full SMS answer, and may still not be enough.
Why did my GoHighLevel texts suddenly stop delivering?
GoHighLevel SMS uses the same A2P 10DLC rails. Usual causes: registration issue on the sub-account, content flag from recent changes, or velocity filtering on campaign bursts. Check A2P status first. If outbound sales, ask if it belongs on those rails: Blue Reacher runs iMessage natively in GoHighLevel.
Is there a business texting channel that carriers can't filter?
iMessage traffic does not pass through the carrier A2P filter path, so the silent drop doesn't apply. The constraint moves to device match: contacts must be reachable over iMessage, which availability check confirms before send, with RCS then SMS fallback. No A2P registration required; TCPA obligations are identical.
Keep reading
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iMessage Deliverability: How to Keep Your Lines Healthy
A practical guide to keeping iMessage lines healthy: what deliverability really means, the reply-to-flag ratio, list hygiene, and how to recover an underperforming campaign.
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