Terms of Service for DARSMS platform access and bulk SMS usage.
These terms explain how DARSMS accounts, sender IDs, API access, billing, and messaging compliance work for customers using the platform in Tanzania.
Your responsibilities on DARSMS
Protect your login credentials and API keys.
Send messages only to contacts with valid permission.
Use approved sender IDs and accurate campaign content.
Follow applicable telecom and data protection rules.
1. Acceptance and account use
By using DARSMS, you agree to use the platform only for lawful business, organizational, or operational messaging. You are responsible for the activity that happens under your account, including keeping login credentials and API keys secure.
2. Messaging rules and consent
You must send messages only to recipients who have given valid permission or who reasonably expect to receive operational updates from you. Spam, phishing, misleading content, abusive messaging, and unlawful marketing activity are not allowed.
3. Content responsibility and review
You are responsible for the content you send and for compliance with telecom, privacy, consumer protection, and anti-spam rules that apply to your use case. DARSMS may review, reject, pause, or remove sender IDs or campaigns that create legal, reputational, or delivery risk.
4. Sender ID policy
4.1 Registration of Sender IDs
All Sender IDs used on the platform must be registered and approved by DARSMS prior to use, in accordance with TCRA requirements. Mobile network operators in Tanzania block messages sent from unregistered Sender IDs, so you may be asked to provide your business registration documents, a description of your service, and sample messages before a Sender ID is approved. Sender IDs must accurately represent your registered business name or brand. Misleading, offensive, or impersonating Sender IDs are strictly prohibited.
4.2 Prohibited Sender IDs
You may not use a Sender ID that:
- Impersonates any government authority, financial institution, network operator, or well-known brand;
- Contains offensive, obscene, or discriminatory language;
- Is misleading as to the identity of the sender, or falsifies the origin of a message;
- Is a generic term such as INFO, SMS, ALERT, VERIFY, or NOTIFY that does not identify your business;
- Has not been approved by DARSMS;
- Violates any TCRA directive or guideline.
4.3 Shared Sender IDs
Where a shared or generic Sender ID is used, such as the default DARSMS Sender ID, DARSMS reserves the right to assign one at its discretion. You accept that shared Sender IDs may be used by multiple customers simultaneously.
5. Regulatory compliance
5.1 TCRA obligations
You agree to abide by all applicable laws, regulations, and network operator or service provider requirements, including the Electronic and Postal Communications (Online Content) Regulations, 2020, as amended, which prohibit the transmission of unlawful, false, misleading, or harmful content. Any complaint from a network operator, service provider, or TCRA will be regarded in a very serious light, and your use of the bulk SMS service may be suspended accordingly.
All customers must additionally comply with:
- The Electronic and Postal Communications Act, Cap. 306 (EPOCA);
- The Electronic and Postal Communications (Consumer Protection) Regulations, 2018, which prohibit SMS marketing to customers who have not consented;
- The Cybercrimes Act, 2015 (Cap. 443), which makes it an offence to send unsolicited messages with criminal intent or to falsify message header information;
- The Personal Data Protection Act, 2022 (Cap. 44) and its regulations;
- Any other directives, guidelines, or notices issued by TCRA from time to time.
5.2 International messaging
It is strictly prohibited to send international messages on behalf of companies that are not legally registered in Tanzania. The use of unauthorised routes, SIM boxes, or improper gateways is prohibited under the Electronic and Postal Communications (Tele-Traffic) Regulations, may result in message blocking by the recipient's telecom providers, and may lead to legal penalties. All international messaging activities must be disclosed to DARSMS in advance and are subject to review and approval.
5.3 Data protection
You must comply with the Personal Data Protection Act, 2022 (Cap. 44), the Personal Data Protection (Personal Data Collection and Processing) Regulations, 2023, and any applicable data protection laws in your jurisdiction. This includes ensuring that you have a lawful basis, such as consent, for processing recipients' personal data, handling such data responsibly and securely, registering with the Personal Data Protection Commission where the law requires it, and promptly honouring any recipient's request to stop receiving marketing messages, including opt-outs made through DARSMS.
6. Billing, credits, and service availability
SMS credits, pricing, and payment terms may vary by plan or agreement. Purchased credits are used when messages are accepted for processing. Delivery depends on mobile networks, approved sender IDs, message content, routing, and destination handset availability, so uninterrupted or error-free delivery cannot be guaranteed.
7. Suspension, termination, and liability
DARSMS may suspend or terminate access if an account appears unsafe, non-compliant, fraudulent, abusive, or overdue. To the maximum extent permitted by law, DARSMS is not liable for indirect, incidental, special, or consequential losses arising from service interruptions, delivery delays, recipient actions, or third-party network failures.
8. Updates to these terms
We may update these terms from time to time to reflect service changes, legal requirements, or operational needs. Continued use of the platform after an update means the revised terms apply from the effective date shown on this page.
Reach the DARSMS team if you need help with sender IDs, onboarding, API access, or platform usage questions before sending live traffic.
Legal and support contacts
Email: support@darsms.co.tz
Phone: +255741801144
For privacy practices, also review the Privacy Policy.