Best Practices to Maximize SMS Deliverability and Stay Compliant

At Unlimited Digital Marketing, we understand the importance of reliable SMS communication with your clients. Ensuring your messages are successfully delivered and remain compliant with carrier regulations is essential to avoid disruptions and protect your brand reputation.

Here are the best practices you should follow to improve SMS deliverability and prevent account restrictions:

Monitor Error and Opt-Out Rates

To maintain high deliverability, we actively monitor your account's SMS delivery performance. Here are the key thresholds to keep in mind:

• Violation Notification: You'll receive an alert when the error rate exceeds 8% or the opt-out rate hits 2%.

• Temporary Suspension: A 24-hour restriction is triggered if the error rate surpasses 12.5% or the opt-out rate exceeds 3%. During this time, no outbound SMS will be sent until 12:01 AM UTC the following day.

What to Do If You Receive a Violation Email

• Immediately pause all workflows, campaigns, and bulk messaging to contacts who haven’t explicitly opted in.

• Review and customize your opt-out language and sender ID to ensure compliance.

• Coordinate with your team or clients to stop all mass messaging or cold outreach campaigns until the issue is resolved.

Understanding Error and Opt-Out Rate Benchmarks

• Opt-Out Rate: A healthy opt-out rate is under 1%. Surpassing 2% will trigger a temporary suspension.

• Error Rate: Ideal error rates fall below 6%. An error rate above 12% results in temporary restrictions due to issues like invalid numbers or SMS-incompatible devices.

Preventing Future SMS Suspensions

Implement the following strategies to reduce the risk of delivery issues:

1. Include Opt-Out Instructions: Add clear instructions like "Reply STOP to unsubscribe" in your first SMS to new contacts.

2. Identify the Sender: Introduce your company or representative clearly in your initial message.

3. Avoid Landline Messaging: Use number validation tools to detect and avoid SMS-incompatible numbers (e.g., landlines).

4. Skip Public URL Shorteners: Avoid using services like Bit.ly or TinyURL. Instead, use branded URLs or full links to avoid being flagged as spam, especially by AT&T and T-Mobile

5. Register Your Messaging Campaigns: Make sure your business profile, A2P brand, and messaging campaigns are properly registered. This improves deliverability and is becoming a standard requirement.

6. Use Clear Website Opt-In Forms: Include a consent checkbox in your forms so users explicitly agree to receive SMS communications. Here's an example disclaimer:

   By submitting your information, you consent to receive communications from [Your Company Name] or its agents, including marketing messages. Consent is not required for purchase. Message and data rates may apply. You can opt-out at any time.

7. State Lead Source: In your first message, clarify how the recipient opted in (e.g., via your website, event, or form).

8. Enable Double Opt-In: Consider asking contacts to confirm their subscription via SMS (e.g., "Reply 1 to confirm").

Final Tip: Stay Updated with Messaging Policies

Familiarize yourself with carrier and platform messaging policies to reduce the chances of restrictions. Regularly reviewing and applying these best practices can significantly improve your SMS engagement while minimizing compliance risks.

By adopting these proactive measures, you can ensure reliable, respectful, and compliant SMS communication with your audience through Unlimited Digital Marketing.