If you’ve ever wondered why some of your messages don’t get delivered, phone carriers like AT&T, Verizon, and T-Mobile are likely doing their job protecting users from unwanted or spammy content. Learn the simple best practices for writing SMS messages that pass carrier spam filters, boosting your deliverability and ensuring compliance with rules like 10DLC.
✨ When You Need This Guide
✨ When You Need This Guide
Patients tell you they aren't receiving your appointment reminders or campaign texts.
You want to make sure your custom messages are compliant and get delivered every time.
You want to understand why carriers like Verizon and AT&T block certain content.
What This Covers (And What It Doesn't):
✅ Covers: Best practices for language, links, and formatting to maximize message deliverability, including the rules about strictly prohibited content.
❌ Doesn't Cover: The step-by-step technical process for registering your 10-digit number (10DLC).
Prerequisites/You'll Need:
An active Aloha texting account.
The patient's confirmed consent to receive text messages (opt-in).
✅ Boost Your Deliverability: 6 Ways to Write Carrier-Approved Messages
✅ Boost Your Deliverability: 6 Ways to Write Carrier-Approved Messages
Phone carriers use smart filters to automatically block texts that look like scams or spam. Following these simple steps will help you write messages that get through, every time.
Avoid "Spammy" or Urgent Language. Filters watch for phrases that promise "free money," "cash prizes," or use high-pressure words like "urgent," "act fast," or "immediate response required." Instead, write natural, helpful messages that clearly state their purpose (e.g., "Your appointment on Tuesday is confirmed").
Use Full, Clear Website Links. Do not use shortened URLs (like bit.ly or goo.gl) or links that don't match your brand name. Filters see these as suspicious. Do use the full URL from your actual, trustworthy website (e.g., https://www.yourclinic.com/portal).
Keep Messages Short and Useful. Avoid long, paragraph-style texts. Text messages should be for quick reminders and updates. If you have a lot to say, send a brief text and politely direct the patient to check their email for the full details.
Stick to Standard Natural Text Only. Special characters like dollar signs ($), excessive emojis, or non-standard punctuation can sometimes confuse carrier filters and trigger a block. For critical messages, use clear, plain language and standard punctuation only.
🛑 Never Send Prohibited Content (SHAFT Content). Carriers strictly block content related to Sex, Hate, Alcohol, Firearms, Tobacco, or Illegal Drugs (like Cannabis/CBD, even if state-legal). Sending this content can lead to your texting account being immediately suspended. Always stick to health and administrative topics only.
Verify Patients Have Opted In. Before you send a text, you must confirm the patient clearly agreed to receive texts from you. This is required by law (TCPA) and carrier guidelines (CTIA) and ensures you stay trusted and compliant. Always provide a way for them to opt out if needed (e.g., "Reply STOP to cancel").
💡 Common Questions
💡 Common Questions
What You Might Notice | Why It's Happening | What to Do |
The message never gets delivered to the patient. | The message was flagged by an automated carrier filter. | Check your text for spammy words ("Free money," "Urgent") or shortened links (bit.ly). |
Large Messages sent in a large batch all fail at once. | The messages look like an unsolicited mass marketing blast. | Keep it short and relevant. Break up large sends into smaller batches. |
You used a dollar sign ($) or an emoji. | Filters sometimes flag special characters as suspicious. | Use standard characters only. Avoid $ signs and emojis for critical communication. |
The message contained a link to a "miracle cure." | Certain unsubstantiated health claims are strictly prohibited. | Stick to conversational and factual messages related to your patient's appointment or account. |
The message was about cannabis or sexual content. | This content (SHAFT) is strictly banned across all US carriers. | Delete the message immediately. Sending this content can lead to your ALOHA texting account being suspended. |
The link you included looks suspicious. | It may not match your domain and could be perceived as phishing. | Use the full, branded link from your actual, trusted website. |
🎉 You'll Know It's Working When:
🎉 You'll Know It's Working When:
Messages are delivered successfully and instantly.
Patients consistently reply to or confirm receipt of your messages.
You feel confident sending clear, helpful, and fully compliant communication.
💬 Need Help? We're Here!
💬 Need Help? We're Here!
We’re always happy to review a message before you send it to ensure compliance!
📞 Call us at 800-563-0469
📧 Email our team at support@getaloha.com