Check Score Impact
See how your Trust Score changes affect daily limits.
Understanding Throughput Throttling
Throughput drops manifest as message queues backing up, "Carrier Violation" errors, or messages taking hours to deliver. This is rarely a technical glitch; it is almost always an enforcement action by carriers based on your sending behavior or brand score.
Common Root Causes
Trust Score Decay
A drop in your Trust Score (e.g., from Low to Very Low) automatically reduces your daily message cap.
Active Filtering
Carriers detected spam-like content (e.g., shortened URLs, aggressive keywords) and are throttling delivery.
T-Mobile Daily Cap
You exceeded the T-Mobile daily limit for your brand tier (e.g., 2,000/day for Low Trust).
How to Restore Speed
Follow this protocol to identify the bottleneck and restore your throughput capacity.
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1
Check Trust Score
Log into your CSP or TCR portal. Did your score drop? If it's below 50, your limits have been severely cut.
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2
Audit Content
Run your recent messages through our validator. Remove public shorteners (bit.ly) and ALL-CAPS words that trigger filters.
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3
Request Re-Vetting
If your score is low, pay for Secondary Vetting ($40) to potentially boost your score and unlock higher tiers.
Throughput Tiers
Your daily capacity is directly tied to your Trust Score. Here are the standard T-Mobile tiers:
| Trust Score | Daily Message Cap | Throughput (TPM) |
|---|---|---|
| Low (0-24) | 2,000 / day | 15 TPM |
| Medium (25-49) | 10,000 / day | 60 TPM |
| High (50-74) | 40,000 / day | 240 TPM |
| Top (75-100) | 200,000 / day | 3,600+ TPM |
Prevention Strategy
Maintain high throughput by proactively managing your reputation.
Monitor Opt-Outs
Keep opt-out rates below 3%. High opt-outs signal spam to carriers.
Branded Links
Always use branded domains for links. Never use generic shorteners.
Consistent Volume
Avoid massive spikes. Ramp up volume gradually to "warm up" numbers.
Restore Your Speed
Don't let throttling kill your campaign ROI. Use our diagnostic suite to identify the bottleneck and fix it fast.
Frequently Asked Questions
Message Validator
Check for content that triggers filters.
Trust Score Sim
Predict your throughput tier.
Remediation Tool
Fix active blocks and rejections.
Legal Disclaimer: This content provides general troubleshooting guidance for SMS throughput issues and does not constitute legal advice. Throughput limits are determined by mobile carriers and The Campaign Registry based on Brand Trust Scores and vetting status. MyTCRPlus does not guarantee specific throughput rates.
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