Anti-Spam & Messaging Compliance Policy

Last updated: June 20, 2026

Xellvio (https://xellvio.com) is committed to keeping messaging trusted, wanted, and compliant. This Anti-Spam & Messaging Compliance Policy sets the standards every Customer must meet to send through the Service. It supplements our Terms of Service and Acceptable Use Policy. Failure to comply may result in immediate suspension or termination and reporting to carriers and authorities.

Every message you send must be based on valid, prior express consent from the recipient. "Consent" means the recipient knowingly and affirmatively agreed to receive the specific type of messages you are sending, from your specific business.

Acceptable proof of consent includes a record of:

When consent was given (timestamp);
How it was given (web form, checkbox, keyword opt-in, point of sale, etc.);
What the recipient agreed to (the disclosure text shown at opt-in);
The phone number that consented.

Consent must not be bundled deceptively, pre-checked, or buried. Consent to marketing messages may not be a condition of purchase.

2. Prohibited Sources of Contacts

You may not send to numbers obtained from: purchased, rented, traded, or leased lists; scraped or harvested sources; third-party "appended" data; or any list where you cannot demonstrate direct consent given to your business. Sending to such lists is the most common cause of spam complaints and account termination.

3. Required Elements in Every Program

Your messaging program must include:

Sender identification — recipients must know which business is messaging them;
Opt-out on demand — STOP and equivalents honored immediately and automatically;
Help on demand — a HELP response with contact information;
Accurate content — no misleading sender info, subject matter, or links;
Required disclosures at opt-in — purpose, frequency, "message and data rates may apply," and links to your Privacy Policy and Terms.

4. Prohibited Sending Practices

The following are strictly prohibited:

Unsolicited messages ("spam") of any kind;
Messaging recipients who have opted out;
Disguising, hiding, or falsifying the origin or routing of messages;
Evading carrier filters, registration, or throughput limits — including spreading traffic across many numbers to avoid detection ("snowshoeing"), rotating senders to dodge complaints, or using multiple accounts to bypass a suspension;
Public/free URL shorteners or link cloaking that hide a message's true destination;
Sending prohibited or restricted content as defined in the Acceptable Use Policy;
Manipulating engagement metrics or consent records.

5. Registration and Verification Integrity

Messaging to many destinations requires sender registration and verification (for example, toll-free verification and A2P/10DLC brand and campaign registration). You must provide truthful, accurate information for these processes, including your real business identity, genuine use case, real sample messages, and an accurate description of how you collect consent. Misrepresentation may result in termination and may violate carrier rules and law.

6. Complaint and Quality Monitoring

We and carriers monitor signals such as spam complaints, opt-out rates, unknown-number rates, and content flags. Sustained poor metrics or complaint spikes may trigger throttling, review, suspension, or termination, regardless of whether an explicit rule was broken. Maintaining list hygiene and sending only wanted messages is your responsibility.

7. Enforcement

We may, at our discretion and where necessary without prior notice, investigate, throttle, suspend, or terminate accounts; block content or campaigns; halt sending; and report violations to carriers, regulators, or law enforcement. We may act immediately where compliance, security, or carrier obligations require it.

8. Reporting

To report spam or a violation of this policy, contact abuse@xellvio.com.

9. Changes

We may update this policy at any time by posting a revised version. Continued use after changes take effect constitutes acceptance.