Legal
Privacy Policy
Last updated: August 2026
1. What we collect
When you join the correspondence, we collect your name, email address, and any messages you send to Mateo as part of your correspondence.
2. Your correspondence is private
The content of your letters — what you write to Mateo and what Mateo writes to you — is private. Only the creator behind Mateo can read it, and only to write you back. Your letter content is never used for analytics, model training, public display, or shared with third parties.
3. How we use your data
We use your email to send letters, your name to address you personally, and your correspondence content to shape Mateo's replies.
4. How letters are generated
Mateo's letters and replies are generated with the assistance of automated systems and reviewed by the creator behind him before they reach you. Your correspondence content is not used to train external models.
5. Cookies & analytics
We use minimal, privacy-respecting analytics to understand which pages are visited and which CTAs are clicked. We do not track correspondence content, personal identifiers in analytics, or sell data to advertisers. Authentication cookies are required for your account.
6. Data retention
Your correspondence history is retained while your account is active. You can request deletion of your correspondence and account data at any time by contacting us.
7. Your rights
You can access, correct, or delete your personal data. You can stop the correspondence and delete your account at any time. To exercise any of these rights, contact us through the contact page.
8. Third-party services
We use third-party services for email delivery and hosting. Each service has its own privacy policy. We only share the minimum data necessary for them to provide their service.
9. Children's privacy
This service is for adults 18 and over. We do not knowingly collect data from minors. The premium social destination is explicitly 18+ content.
10. Contact
For privacy questions or data requests, use the contact page. We respond within 30 days.