Understanding the complex landscape of SMS marketing compliance requires a clear grasp of consent requirements and the interplay with national Do Not Call (DNC) lists. Unlike email, SMS marketing faces stringent regulations, primarily under the Telephone Consumer Protection Act (TCPA) in the United States, which carries significant penalties for non-compliance. This summary explores the critical aspects of obtaining and maintaining consent, the role of DNC lists, and practical steps to ensure your SMS campaigns remain compliant.
Key findings
Explicit consent is paramount: Prior express written consent is mandatory before sending any SMS marketing messages. This consent must specifically cover SMS communications, not just general marketing or email opt-ins.
DNC list interaction: Even if a number is on the National Do Not Call Registry, a business can send marketing SMS messages if they have clear, explicit consent from the consumer. However, without consent, sending texts to a DNC-listed number is a violation.
Private right of action: The TCPA grants individuals the right to sue businesses directly for violations, with statutory damages of up to $1,500 per message sent without consent to a DNC-listed number.
Consent documentation: Businesses must be able to demonstrate and verify consent if challenged. This means meticulously storing records of how and when consent was obtained.
Regular DNC checks: While consent overrides a DNC listing, routinely checking against the Federal Do Not Call Registry is a critical compliance practice, especially for lists where consent might be ambiguous or aged. Maintaining a clean list also prevents issues like unwanted messages.
Key considerations
Opt-in process clarity: Ensure your SMS opt-in process is crystal clear, explicitly stating what types of messages will be sent and how frequently. This clarity helps in proving consent if needed.
Consent duration: While not explicitly defined, consent generally implies an ongoing relationship. However, understanding how long consent lasts in email marketing provides a good parallel for SMS.
Triggered campaigns: For triggered SMS campaigns, ensure that the initial consent mechanism is robust enough to cover these automated messages, as real-time DNC checks before each message might not be feasible.
Legal compliance awareness: Marketers should stay updated on TCPA changes and other regulations from entities like the Federal Trade Commission (FTC) to avoid fines and legal challenges.
Opt-out mechanisms: Always provide a clear and easy way for recipients to opt out of SMS messages, such as replying STOP. This is a fundamental requirement.
What email marketers say
Email marketers transitioning into or expanding into SMS marketing often encounter a steep learning curve regarding compliance. The primary concern revolves around obtaining and documenting consent, as well as navigating the complexities of the Do Not Call list. Many marketers rely on their existing email deliverability knowledge, but SMS regulations, particularly the TCPA, introduce unique challenges and higher stakes. The discussion among marketers highlights the importance of explicit consent and the necessity of diligent record-keeping to mitigate legal risks.
Key opinions
Initial validation focus: Some marketers initially focus on phone number validation tools, similar to email verification, without fully grasping the primary importance of consent and DNC checks.
Consent vs. DNC confusion: There's common confusion about whether explicit consent overrides a DNC listing, which it does, provided consent is properly obtained and documented.
Automated campaign concerns: Marketers worry about the feasibility of real-time DNC checks for triggered SMS campaigns, questioning if such campaigns are even possible under strict rules.
Reliance on ESP features: Some believe their SMS platform (e.g., Salesforce Marketing Cloud) automatically handles DNC list cross-referencing, which provides a layer of security but doesn't negate the need for explicit consent.
Risk assessment: The potential for high fines and individual lawsuits under the TCPA makes marketers extremely cautious about compliance.
Key considerations
Consent granularity: Marketers must ensure consent is specific to SMS marketing, not just implied from other opt-ins.
Record keeping: Implement robust systems for capturing and storing verifiable consent, including timestamps and methods of consent, to serve as defense against legal claims.
List hygiene importance: Even with consent, regular list cleaning and suppression against DNC lists is a best practice to avoid unintentional violations and maintain a high standard of compliance.
Education and training: Educate marketing teams on the severe implications of TCPA non-compliance and the nuances of SMS consent, which differ from email marketing laws like CAN-SPAM.
Third-party data: If considering using third-party phone number lists, be extremely cautious and verify consent, similar to how one would approach email marketing with third-party data.
Marketer view
Marketer from Email Geeks indicates that they are looking into Validity's BriteVerify product for phone number validation, similar to how they use it for email verification. This suggests an initial focus on data hygiene and deliverability, echoing email best practices.
03 May 2023 - Email Geeks
Marketer view
Marketer from Klaviyo Help Center stresses that express consent must always be obtained before sending any text messages, even if a consumer has opted into an email list and their phone number is available from a previous signup. This highlights the distinct consent requirements for SMS.
01 Jan 2025 - Klaviyo Help Center
What the experts say
Experts in email deliverability and compliance often extend their insights to SMS marketing, emphasizing the critical differences in regulatory frameworks. Their opinions frequently highlight the severe penalties associated with non-compliance under acts like the TCPA, contrasting it with email regulations like CAN-SPAM. The consensus among experts is that explicit, verifiable consent is the cornerstone of legitimate SMS marketing, and that while DNC lists are crucial, proper consent can legally override a listing.
Key opinions
Demonstrable consent: Experts strongly advise that SMS marketers must have 100% demonstrable and verifiable consent for every message sent.
DNC list priority: Before even considering validity, the primary check should always be against the Federal Do Not Call list for marketing messages.
Consent overrides DNC: Explicit consent for SMS marketing legally overrides a recipient's presence on the Do Not Call list.
High stakes: The TCPA includes a private right of action, allowing individuals to sue for significant statutory damages ($500 to $1,500 per message) for unsolicited SMS.
Consent proof as defense: The only reliable defense against a TCPA claim based on a DNC listing is the ability to produce verifiable consent.
Avoid implicit consent: Experts strongly advise against relying on implicit consent for SMS, even with DNC suppression, due to the high legal risks.
Key considerations
Continuous DNC checks: It's imperative to check lists against the Federal Do Not Call Registry every time before sending, as numbers are continuously added.
SMS-specific consent: Consent must be explicitly obtained for SMS marketing, not merely extrapolated from email subscriptions or other forms of contact.
Documentation is key: Maintain robust records of all consent, including date, method, and specific terms, to defend against potential lawsuits. This is similar to the importance of email consent records.
Automated checks: While manual checks are possible, automated solutions for phone number validation and DNC screening are crucial for scalable and compliant SMS operations.
Understanding legal recourse: Be aware that individuals can pursue private action under TCPA for unsolicited SMS, making robust consent management your primary defense.
Expert from Email Geeks asserts that marketers must have 100% demonstrable and verifiable consent for SMS marketing messages. They underscore that failure to do so, especially when sending to a number on the Federal Do Not Call list, can lead to significant legal trouble and private rights of action under the TCPA.
03 May 2023 - Email Geeks
Expert view
Expert from SpamResource suggests that maintaining a high level of transparency in your SMS opt-in process is crucial for preventing complaints. They advise clearly stating the purpose of messages, frequency, and opt-out methods to manage recipient expectations and improve overall compliance.
15 Mar 2024 - SpamResource
What the documentation says
Official documentation and regulatory guidelines provide the definitive framework for SMS marketing compliance. These documents, primarily from governmental bodies like the Federal Communications Commission (FCC) and the Federal Trade Commission (FTC), detail the legal requirements of the TCPA and the purpose of the National Do Not Call Registry. Key emphasis is placed on the type of consent required, the implications of DNC listings, and the legal recourses available to consumers, including private rights of action for violations.
Key findings
TCPA Scope: The Telephone Consumer Protection Act (TCPA) regulates automated telephone calls, pre-recorded calls, and SMS text messages, requiring prior express consent for marketing communications.
DNC Registry Purpose: The National Do Not Call Registry is a list of phone numbers whose owners have expressed a preference to limit telemarketing calls and texts.
Express Written Consent: For marketing SMS messages, the TCPA requires prior express written consent, which can be electronic but must clearly authorize messages.
Consent Exception: Even if a number is on the DNC list, a business may send marketing SMS if it has obtained the necessary consent from the subscriber.
Recordkeeping Requirement: Businesses must maintain records of consent for at least four years, demonstrating how and when consent was obtained, to prove compliance if challenged.
Key considerations
Opt-out provisions: All SMS marketing messages must include a clear and conspicuous mechanism for recipients to opt out, such as replying STOP. Failure to do so is a violation.
Scope of consent: Documentation specifies that consent must relate directly to the SMS messages being sent. Generic consent for communication is often insufficient.
State-specific DNC lists: Beyond the federal registry, some states (e.g., Connecticut) maintain their own Do Not Call registries that marketers must also comply with.
Lead generator consent: Recent FCC rules highlight that consent obtained through lead generators must be unambiguous and directly from the consumer for a specific seller, not just a broad category. This applies to calls and texts for advertising. Learn more from Consumer Finance Monitor.
Enforcement and penalties: Violations can result in significant penalties, including fines of up to $1,500 per violation, enforced by the FCC or through private lawsuits.
Technical article
Documentation from the Federal Trade Commission (FTC) clarifies that the National Do Not Call Registry is a list of phone numbers where consumers have indicated their preference to limit telemarketing calls. While primarily for calls, its provisions often extend to SMS marketing under TCPA.
01 Jan 2025 - Federal Trade Commission
Technical article
Documentation from ISIPP SuretyMail emphasizes that sending SMS marketing to a phone number on the Do Not Call list without explicit consent constitutes a violation of Federal law. They highlight that consent is the sole overriding factor for DNC listings.