Last Updated: March 20, 2026
Effective Date: Immediately
Company: Sendarix (“we”, “us”, “our”)
Website: https://www.sendarix.com
Client Dashboard: https://app.sendarix.com
Legal notices: legal@sendarix.com
These Terms govern use of Sendarix email delivery infrastructure (SMTP, API, dashboards, and related features). They are written for clarity; your counsel should review them for your jurisdiction and use case.
1. Acceptance
By accessing or using the Service (the Website, Client Dashboard at app.sendarix.com, APIs, SMTP endpoints, and related documentation), you agree to these Terms of Service and the policies incorporated by reference: Acceptable Use Policy (AUP), Privacy Policy, and Data Processing Agreement (DPA) where applicable. If you use the Service on behalf of a company or other entity, you represent that you have authority to bind that entity. If you do not agree, do not use the Service.
Electronic acceptance (including creating an account, clicking to accept, or sending mail through the Service) has the same effect as a signed agreement to the extent permitted by law.
2. Definitions
- “Customer” / “you” — the person or entity that registers for or uses the Service.
- “Customer Content” — messages, recipient data, templates, attachments, and other materials you submit for transmission or storage in connection with the Service.
- “Documentation” — technical and usage materials we publish for the Service (including on www.sendarix.com).
- “Service” — Sendarix email delivery and related products we make available to you.
3. Description of the Service
Sendarix provides email delivery infrastructure, including SMTP relay, Email API, analytics, webhooks, suppression lists, reputation-related tooling, DNS guidance, and account dashboards. Features may vary by plan.
The Service is accessed through:
- www.sendarix.com — public site and Documentation
- app.sendarix.com — Client Dashboard (sending configuration, API keys, billing, support, account management)
We may modify, suspend, or discontinue parts of the Service (including to address abuse, security, or deliverability). Where reasonably practicable we will give notice of material adverse changes; continued use after notice constitutes acceptance unless applicable law requires a different process.
Beta or preview features may be offered “as is” without uptime or support commitments unless we state otherwise in writing.
4. Eligibility
You must be at least 18 years old, provide accurate registration information, and not be barred from using email infrastructure or our Service under applicable law. We may refuse or revoke access based on risk, compliance, or abuse assessments.
5. Accounts & security
You are responsible for credentials, API keys, and all activity under your account. You will use reasonable security measures (including safeguarding secrets and restricting access). You will notify us promptly of unauthorized use or suspected compromise at abuse@sendarix.com or through support channels we provide.
You must not sell, share, or pool credentials in a way that circumvents limits, monitoring, or the AUP.
6. Customer Content & compliance
6.1 Your role. As between you and Sendarix, you are responsible for your mail programs and your relationship with your recipients. You are the sender (or cause the sending of) Customer Content and must comply with laws and industry standards applicable to you, including without limitation anti-spam, marketing, consumer protection, telecommunications, and data protection rules (for example requirements for consent, truthful routing information, identification, and unsubscribe handling where they apply to you).
6.2 Rights and authority. You represent and warrant that you have all rights and lawful bases necessary to submit Customer Content and recipient data for processing by the Service, and that doing so does not violate third-party rights.
6.3 No illegal or harmful use. You will not use the Service in violation of the AUP or applicable law. We may block, throttle, or remove Customer Content that we reasonably believe violates law, the AUP, or threatens the Service or third parties.
6.4 License to operate the Service. You grant Sendarix a non-exclusive, worldwide, royalty-free license to host, reproduce, transmit, and otherwise process Customer Content solely as reasonably necessary to provide, secure, and improve the Service and to comply with law.
7. License to use the Service
Subject to these Terms and your payment obligations, we grant you a limited, non-exclusive, non-transferable, revocable right to access and use the Service during the term. You obtain no ownership of our software, systems, or branding. Except as expressly allowed by law, you will not reverse engineer, scrape the Service except through documented APIs, or build a competing product using our Confidential Information.
8. Payment & taxes
Billing is managed through the Client Dashboard at app.sendarix.com. Fees are exclusive of applicable taxes unless stated otherwise; you are responsible for taxes imposed on your purchases other than our income taxes. Non-payment may result in suspension or termination. You agree that:
- All payments are final except where mandatory law requires otherwise
- Email credits and subscription periods are generally non-refundable as set out in Section 9
- Chargebacks or fraudulent payment disputes may result in termination
- Abuse, AUP violations, or illegal use void refund eligibility
- Prices may change with reasonable notice as described on our site or in the Dashboard
9. No refund policy
All payments made to Sendarix are final, including unused credits, subscription periods, or accounts terminated due to abuse, policy violations, or deliverability issues, except where mandatory consumer or other law requires a different outcome.
We do not provide prorated refunds unless we expressly agree in writing.
10. Acceptable use
All use must comply with our Acceptable Use Policy (AUP), which is incorporated into these Terms. The AUP addresses spam, phishing, list hygiene, authentication, security, and enforcement. We may suspend or terminate for AUP violations.
11. API, SMTP & rate limits
You will not exceed documented limits, abuse endpoints, probe or attack our systems, attempt to bypass authentication or metering, operate an open relay through the Service, or interfere with other customers. We may throttle or cap traffic to protect deliverability and stability.
12. Service levels & support
The Service is provided on an “as available” basis. Unless you have a separate written agreement with us that expressly states a service level commitment, we do not guarantee uninterrupted or error-free operation, specific delivery rates, inbox placement, or reputation outcomes. Support channels and response targets depend on your plan and our published practices.
13. Data protection
Where we process personal data on your behalf as a processor, the DPA applies and supplements these Terms. Where we act as controller (for example account and billing data), our Privacy Policy applies. You will provide lawful instructions and reasonable assistance so we can respond to regulatory or data subject requests relating to your use of the Service, as described in the DPA.
14. Logs & analytics
We may log technical and operational data (including SMTP/API activity, delivery outcomes, security events, and abuse signals) as described in the Privacy Policy. We may create aggregated or de-identified statistics that do not identify you or recipients, which we may use to operate and improve the Service.
15. Confidentiality
Each party may receive non-public information of the other (“Confidential Information”). The receiving party will use reasonable care to protect Confidential Information and use it only for the relationship. Exclusions include information that is public through no fault of the recipient, independently developed, or rightfully received from a third party. We may disclose Confidential Information if required by law or a valid legal process, subject to lawful restrictions.
16. Intellectual property
Sendarix and its licensors own the Service, Documentation, and our branding. Except for the limited rights in Section 7, no rights are granted. You retain ownership of Customer Content. If you give us feedback or suggestions, you grant us a perpetual, irrevocable, royalty-free license to use them without obligation to you.
17. Third-party services
You may integrate third-party products (payment gateways, CRMs, etc.). Your relationship with those providers is separate; we are not responsible for third-party services, content, or failures.
18. Export & sanctions
You represent that you are not subject to trade sanctions that would prohibit your use of the Service and that you will not use the Service in violation of export control or sanctions laws applicable to you or us. We may refuse or terminate Service where required to comply with such laws.
19. Suspension & termination
We may suspend or terminate access for AUP or Terms violations, non-payment, security incidents, legal requirement, or risk to the platform. We may also terminate for repeated or severe issues. You may stop using the Service at any time; closing an account may be available in the Dashboard or by contacting support.
Upon termination, your right to use the Service ceases. Provisions that by nature should survive (including fees owed, confidentiality, disclaimers, limitations, indemnities, and governing law) survive.
Deletion and retention of data are handled as set out in the Privacy Policy and DPA.
20. Disclaimer of warranties
To the maximum extent permitted by applicable law, the Service is provided “as is” and “as available” without warranties of any kind, whether express, implied, or statutory, including implied warranties of merchantability, fitness for a particular purpose, title, and non-infringement. We do not warrant that the Service will meet your requirements or that email will be delivered to any particular inbox.
21. Limitation of liability
To the maximum extent permitted by applicable law:
- Neither party is liable for indirect, incidental, special, consequential, exemplary, or punitive damages, or for loss of profits, revenue, goodwill, data, or business interruption, arising out of or related to the Service or these Terms, even if advised of the possibility.
- Our aggregate liability for all claims arising out of or related to the Service or Terms in any twelve-month period is limited to the fees you paid to Sendarix for the Service in that period (excluding pass-through taxes). If you used only free tiers or credits without payment, our aggregate liability is limited to one hundred euros (€100).
Nothing in these Terms excludes or limits liability that cannot be excluded or limited under mandatory law (for example gross negligence, fraud, or death/personal injury in some jurisdictions).
22. Indemnification
You will defend, indemnify, and hold harmless Sendarix and its affiliates, officers, and employees from third-party claims, fines, and reasonable costs (including attorneys’ fees) arising from Customer Content, your mail practices, your violation of law or these Terms, or disputes between you and your recipients or regulators, except to the extent caused by our gross negligence or willful misconduct.
23. Changes to these Terms
We may update these Terms by posting a revised version on <strong>www.sendarix.com</strong> (or notifying you through the Dashboard or email where we have your address). Unless we say otherwise or mandatory law requires a different approach, updates take effect when posted and continued use after the effective date constitutes acceptance. If you do not agree, you must stop using the Service.
24. Force majeure
Neither party is liable for delay or failure to perform due to events beyond reasonable control (for example natural disasters, war, terrorism, labor disputes, failures of public networks or major cloud providers, or government action), except payment obligations where not prevented.
25. Assignment; relationship
You may not assign or transfer these Terms without our prior consent, except to an affiliate or in connection with a merger or sale of substantially all your assets with notice to us. We may assign to an affiliate or in connection with a business transaction. The parties are independent contractors; no partnership or agency is created.
26. General
These Terms, together with the policies linked above, are the entire agreement regarding the Service and supersede prior oral or written understandings on that subject. If a provision is invalid, the remainder remains in effect. Failure to enforce a provision is not a waiver. Section headings are for convenience only.
27. Governing law & disputes
These Terms are governed by the laws designated for your commercial relationship with Sendarix in an order form, enterprise agreement, or checkout terms, if any. If none is designated, the governing law and courts will be those most closely connected to Sendarix’s establishment as notified on our website or in the Dashboard, without prejudice to mandatory consumer protection or data protection rights that apply to you in your country of residence and cannot be waived by contract.
For informal resolution before formal proceedings, you may contact legal@sendarix.com.
28. Contact
Legal: legal@sendarix.com
Privacy: privacy@sendarix.com
Abuse: abuse@sendarix.com
Need a commercial or legal contact?
Enterprise procurement, DPAs, and custom terms—we respond on business days.
Email legal@sendarix.comContact form