“Proscribed” means forbidden. Carriers have proscribed public link shorteners and “panic-inducing” syntax. If you use them, you die. Here is the compliant “Safe-Send” protocol I build for high-volume roofers.
The A2P 10DLC Smackdown
The Purge is Here
Since the full enforcement of A2P 10DLC (Application-to-Person 10 Digit Long Code), Verizon, AT&T, and T-Mobile are filtering SMS traffic with aggressive AI. If your message looks like a “blast,” it doesn’t just get blocked—your entire sub-account gets flagged.
The Common “Death” Signals
1. Using bit.ly or tinyurl.com.
2. Using ALL CAPS or multiple exclamation marks!!!
3. Sending 500 identical messages in 60 seconds.
Why Your “Open Rate” Just Dropped to Zero
If you are in Advanced Lead Generation, specifically Solar or Roofing, you live and die by your contact rate.
You might blame the leads. You might blame the script. But 90% of the time, it’s your Delivery Rate. The carrier algorithms have evolved. They treat “Public Link Shorteners” as malware.
The “Bitly” Trap
When you use bit.ly/RoofQuote, the carrier cannot see where the link goes. Scammers use this to hide phishing sites. Therefore, carriers have Proscribed (banned) these domains at the root level.
Result: Your message is marked “Spam” before it ever reaches the consumer’s phone. You are paying Twilio to send messages into a black hole.
The “Safe-Send” Architecture
To bypass the filters, we must look like a human friend, not a marketing bot. We achieve this through Domain Whitelisting and Syntax Rotation.
| Compliance Layer | The Wrong Way (Banned) | The Safe-Send Way (Compliant) |
|---|---|---|
| Link Handling | Public Shorteners (Bitly, TinyURL) | Private Sub-Domain: link.mycompany.com (Whitelisted DNS). |
| Syntax | “ACT NOW!!! FREE ROOF INSPECTION!!” | Conversational Lowercase. “Hey John, saw the storm damage…” |
| Velocity | 1,000 blasts in 1 minute. | “Drip Mode”: 1 message every 20-30 seconds per number. |
The Filter Simulator
See exactly how a carrier’s AI interprets your outreach. Click the scenarios below.
CARRIER FLAG REPORT:
- [CRITICAL] Public Shortener Detected (bit.ly).
- [HIGH] Aggressive Capitalization (URGENT, FREE).
- [MED] Multiple Exclamation Marks (!!!).
- RESULT: BLOCKED (Error 30007)
CARRIER FLAG REPORT:
- [PASS] Whitelisted Branded Domain.
- [PASS] Conversational Tone (Human-like).
- [PASS] Contextual relevance (Main St, Storm).
- RESULT: DELIVERED
How to Build the Fix Today
You do not need to fire your marketing team. You just need to fix the plumbing.
In GoHighLevel (or your CRM), go to settings and add a dedicated domain for links (e.g., msg.yourdomain.com). Update your DNS records (CNAME). This tells Verizon that YOU own the link, and your domain reputation (which we must protect) is backing it.
Sending 1,000 identical messages is a bot signature. We use Spintax code to vary the greeting:
{Hi|Hello|Hey} {{contact.first_name}}, {this is|it's} Mike...
This generates dozens of unique message hash variations, making it much harder for filters to detect a “blast.”
Never use “Bulk Action -> Send All at Once.”
Use “Drip Mode.” Set it to process 1 batch every 1 minute, with a batch size of 1-3. This mimics human speed. It takes longer, but the messages actually arrive.
Compliance IS Revenue
You are paying for leads. You are paying for Twilio segments. If your messages are blocked, you are lighting money on fire.
The Math: A 95% delivery rate on a “Safe-Send” campaign beats a 20% delivery rate on a “Blast” campaign every single time, even if the blast campaign is faster.
This infrastructure is non-negotiable for scaling your business in the current regulatory environment.
Protect Your Numbers
Don’t wait for the “Account Suspended” email. I engineer the compliance protocols that keep your A2P 10DLC health score in the green.
Using ClickFunnels for your leads? Read this review on ClickFunnels Pros & Cons before you text them.