Privacy Policy

Last updated: January 30, 2026

This Privacy Policy describes how Kyuzo Corp d/b/a Senders ("Company," "we," "us," or "our") collects, uses, and shares information in connection with the Rewarm service ("Service"). By using our Service, you agree to the collection and use of information in accordance with this policy.

1. Information We Collect

Information You Provide

• Account Information: When you sign up or contact us, we collect your name, email address, company name, and other information you provide.
• Contact Data: When you use our Service, you may upload or provide access to email contact lists, including email addresses and associated data such as names, engagement history, and purchase history.
• Communications: When you contact us, we collect the content of your messages and any information you choose to provide.

Information Collected Automatically

• Usage Data: We collect information about how you interact with our Service, including pages visited, features used, and actions taken.
• Device Information: We collect information about the device and browser you use to access our Service, including IP address, browser type, and operating system.
• Email Engagement Data: We track opens, clicks, bounces, and other engagement metrics for emails sent through our Service.

2. How We Use Your Information

We use the information we collect to:

• Provide, maintain, and improve the Service
• Process and manage email re-engagement campaigns on your behalf
• Communicate with you about the Service, including responding to inquiries and providing support
• Monitor and analyze usage patterns and trends
• Detect, prevent, and address technical issues and security threats
• Comply with legal obligations

3. How We Share Your Information

We may share your information in the following circumstances:

• Service Providers: We share information with third-party vendors who help us operate the Service, such as email infrastructure providers, hosting providers, and analytics services. These providers are contractually obligated to protect your information.
• Legal Requirements: We may disclose information if required to do so by law or in response to valid requests by public authorities.
• Business Transfers: In connection with a merger, acquisition, or sale of assets, your information may be transferred as part of that transaction.
• With Your Consent: We may share information with your consent or at your direction.

We do not sell your personal information or the contact data you provide to us.

4. Data Processing for Email Services

When you use Rewarm to re-engage your contacts, we act as a data processor on your behalf. You remain the data controller for the contact data you provide. You are responsible for ensuring you have appropriate consent or legal basis to provide this data to us and to send re-engagement emails to your contacts.

5. Data Retention

We retain your information for as long as your account is active or as needed to provide the Service. We retain contact data you upload for the duration of your use of the Service, plus a reasonable period thereafter for operational purposes. You may request deletion of your data at any time by contacting us.

6. Data Security

We implement appropriate technical and organizational measures to protect your information against unauthorized access, alteration, disclosure, or destruction. However, no method of transmission over the Internet or electronic storage is 100% secure, and we cannot guarantee absolute security.

7. Your Rights and Choices

Depending on your location, you may have certain rights regarding your personal information:

• Access: You may request access to the personal information we hold about you.
• Correction: You may request that we correct inaccurate or incomplete information.
• Deletion: You may request that we delete your personal information, subject to certain exceptions.
• Data Portability: You may request a copy of your data in a portable format.
• Objection: You may object to certain processing of your personal information.

To exercise these rights, please contact us at hello@senders.co.

8. International Data Transfers

Your information may be transferred to and processed in countries other than your country of residence. These countries may have data protection laws that are different from the laws of your country. We take appropriate safeguards to ensure that your information remains protected in accordance with this Privacy Policy.

9. California Privacy Rights

If you are a California resident, you have additional rights under the California Consumer Privacy Act (CCPA), including the right to know what personal information we collect, the right to delete your information, and the right to opt out of the sale of your information. As noted above, we do not sell personal information.

10. GDPR Compliance

If you are located in the European Economic Area (EEA), we process your personal information based on legitimate interests, contractual necessity, or your consent, depending on the specific processing activity. You have the right to lodge a complaint with your local data protection authority.

11. Cookies and Tracking

We use cookies and similar technologies to collect usage information and improve the Service. You can control cookies through your browser settings. For more information, see our Cookie Policy.

12. Children's Privacy

The Service is not directed to children under 16 years of age, and we do not knowingly collect personal information from children. If we learn that we have collected personal information from a child, we will take steps to delete that information.

13. Changes to This Policy

We may update this Privacy Policy from time to time. We will notify you of any material changes by posting the new policy on this page and updating the "Last updated" date. Your continued use of the Service after such changes constitutes your acceptance of the updated policy.

14. Contact Us

If you have any questions about this Privacy Policy or our privacy practices, please contact us at:

Kyuzo Corp d/b/a Senders
Email: hello@senders.co