End User License Agreement

Effective March 27, 2026 · Version 1.1

Important — Read Carefully Before Using This Software

This End User License Agreement (“Agreement”) is a legally binding contract between you (“User,” “you,” or “your”) and buxjr (“Developer,” “we,” “us,” or “our”), governing your use of the Box Email Client software application (“Software”).

By installing, copying, or otherwise using the Software, you acknowledge that you have read, understood, and agree to be bound by this Agreement. If you do not agree, do not install or use the Software.

1. Definitions

  • “Software” means the Box Email Client application, including all associated files, libraries, documentation, updates, patches, and copies thereof.
  • “License Key” means the digital credential issued upon purchase that unlocks paid features.
  • “Free Tier” means the version limited to one (1) email account.
  • “Paid Tier” means the version unlocked by a valid License Key permitting multiple email accounts.
  • “Licensing Service” means the remote license validation system operated by the Developer.
  • “User Data” means emails, contacts, credentials, settings, and other data stored or processed by the Software on your device.

2. Grant of License

2.1 License Grant. Subject to this Agreement, the Developer grants you a limited, non-exclusive, non-transferable, non-sublicensable, revocable license to install and use the Software for personal or internal business use.

2.2 Device Limit (Paid Tier). A Paid Tier license permits use on up to five (5) devices owned or controlled by you. Use beyond this limit is not permitted without additional licenses.

2.3 Free Tier. You may use the Software at no cost with one (1) email account configured.

2.4 Paid Tier. Upon payment and receipt of a valid License Key, Paid Tier features are unlocked. The license is perpetual for the version purchased, subject to this Agreement.

2.5 No Ownership. This Agreement grants a license only. No ownership or intellectual property rights are transferred.

3. Acceptable Use and Restrictions

You agree not to:

  • Reverse engineer, decompile, or attempt to derive source code
  • Circumvent licensing, validation, or security mechanisms
  • Copy, distribute, sublicense, or resell the Software
  • Use the Software to develop a competing product
  • Share or distribute License Keys outside your personal or internal business use
  • Use the Software to send unlawful, abusive, fraudulent, or unsolicited communications (including spam)
  • Use the Software in violation of any applicable law or third-party terms

4. Intellectual Property

The Software and all associated intellectual property rights are the exclusive property of the Developer.

If you provide feedback, you grant the Developer a perpetual, irrevocable, royalty-free right to use it without restriction.

5. Data Handling and Privacy

5.1 Local Storage. User Data is stored locally on your device in a SQLite database at ~/.config/Box/. The Developer does not receive your email content.

5.2 Credentials. Credentials are stored in your operating system’s secure keyring via Electron’s safeStorage API. The Developer does not access them.

5.3 Network Activity. The Software may connect to:

  • Email servers (IMAP/SMTP)
  • OAuth providers (e.g., Google, Microsoft)
  • Licensing Service (for license validation)
  • DNS services (for SPF/DKIM/DMARC verification)
  • Remote image servers (only if you choose to load images)

5.4 No Telemetry. The Software does not collect analytics, usage telemetry, or behavioral tracking data.

5.5 No Advertising. The Software contains no ads and does not sell or share User Data.

5.6 Future Changes. The Developer will not introduce telemetry or data collection features without updating this Agreement.

5.7 User Responsibility. You are solely responsible for securing your device and accounts, and maintaining backups of your data.

For full details, see the Privacy Policy and Privacy Architecture.

6. License Validation

  • Periodic validation with the Licensing Service may occur
  • Temporary offline operation is supported
  • Extended failure to validate may restrict features
  • License Keys may be revoked for fraud, abuse, or violations of this Agreement

For full details on how licensing works, see Licensing Transparency.

7. Payments and Refunds

  • Paid Tier is a one-time purchase (no subscription)
  • Refund requests may be submitted within thirty (30) days of purchase and are evaluated reasonably at the Developer’s discretion
  • Refunded licenses will be revoked

8. Updates and Support

  • Updates may be provided at the Developer’s discretion
  • No obligation exists to provide updates, maintenance, or support
  • Support, if offered, is provided on a best-effort basis without guarantees

9. Third-Party Services

The Software depends on third-party services (email providers, OAuth providers, DNS systems). The Developer is not responsible for:

  • Service outages
  • API restrictions or changes
  • Account suspensions
  • Data loss caused by third-party systems

10. Disclaimer of Warranties

THE SOFTWARE IS PROVIDED “AS IS” AND “AS AVAILABLE,” WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED.

THE DEVELOPER DISCLAIMS ALL WARRANTIES, INCLUDING BUT NOT LIMITED TO: MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND NON-INFRINGEMENT.

THE DEVELOPER DOES NOT GUARANTEE: UNINTERRUPTED OPERATION, ERROR-FREE PERFORMANCE, SECURITY OR ABSENCE OF VULNERABILITIES, OR DELIVERY, INTEGRITY, OR STORAGE OF EMAIL DATA.

YOU ARE RESPONSIBLE FOR MAINTAINING BACKUPS OF YOUR DATA.

11. Limitation of Liability

TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW:

  • THE DEVELOPER SHALL NOT BE LIABLE FOR ANY INDIRECT, INCIDENTAL, SPECIAL, OR CONSEQUENTIAL DAMAGES
  • TOTAL LIABILITY SHALL NOT EXCEED THE GREATER OF: THE AMOUNT PAID BY YOU IN THE LAST 12 MONTHS, OR $10 USD

12. Termination

12.1 By User. You may terminate this Agreement at any time by uninstalling the Software.

12.2 By Developer. The Developer may terminate this Agreement if you violate its terms.

12.3 Effect. All rights granted under this Agreement cease upon termination. Sections 4, 10, 11, 13, and 14 survive termination.

12.4 Data. Your data remains on your device after termination. The Software does not delete User Data upon uninstallation.

13. Indemnification

You agree to indemnify and hold harmless the Developer from any claims, damages, or expenses arising from your use or misuse of the Software, or your violation of this Agreement.

14. Governing Law

This Agreement is governed by the laws of the State of South Carolina, United States of America. All disputes arising under this Agreement shall be resolved in the courts located in Lexington County, South Carolina.

15. General Provisions

  • Entire Agreement. This Agreement constitutes the entire agreement between you and the Developer regarding the Software and supersedes all prior agreements.
  • Severability. If any provision is held invalid or unenforceable, the remaining provisions remain in full force and effect.
  • No Waiver. Failure to enforce any provision does not constitute a waiver of that provision.
  • Assignment. The Developer may assign this Agreement. You may not assign your rights or obligations without prior written consent.
  • Force Majeure. The Developer is not liable for failures caused by events beyond reasonable control.
  • Export Compliance. You agree to comply with all applicable export laws and regulations.

16. Contact

buxjr
Email: box@buxjr.com
Website: box.buxjr.com

17. Acknowledgment

By installing or using the Software, you acknowledge that you have read, understood, and agree to be bound by this Agreement.