Open Source Notices

NorthRelay is built on excellent open-source software. This page provides attribution and license information for all third-party components.

AGPLv3 Compliance Statement

NorthRelay utilizes modified versions of Stalwart Mail Server (AGPLv3). As required by AGPLv3 Section 13, the complete corresponding source code is available.

Source Code Repository:

github.com/North-Relay/stalwart

Request Source Code via Email:

engineering@alteriom.com

We will respond within 30 days with complete corresponding source code as required by AGPLv3.

Core Infrastructure

Stalwart Mail Server

AGPLv3

All-in-one email server (SMTP, IMAP, JMAP) written in Rust

Copyright: 2020 Stalwart Labs LLC

Upstream: stalwartlabs/stalwart

NorthRelay Fork: North-Relay/stalwart

License: View AGPLv3

PostgreSQL

PostgreSQL License

Open-source relational database management system

Copyright: PostgreSQL Global Development Group

Website: postgresql.org

License: View License

Frontend Framework

Next.js

MIT

React framework for production-grade web applications

Copyright: Vercel, Inc.

Repository: vercel/next.js

React

MIT

JavaScript library for building user interfaces

Copyright: Meta Platforms, Inc.

Repository: facebook/react

UI & Styling

Tailwind CSS

MIT

Utility-first CSS framework

Radix UI

MIT

Unstyled, accessible UI components

Shadcn/UI

MIT

Re-usable component library

Database & ORM

Prisma

Apache 2.0

Next-generation ORM for Node.js and TypeScript

Copyright: Prisma Data, Inc.

Repository: prisma/prisma

Complete Dependency List

For a complete machine-readable list of all npm packages and their licenses, run the following command in the project root:

npx license-checker --production --json

This command generates a JSON file listing all production dependencies, their versions, licenses, and repository URLs.

Questions about our open-source usage? Contact engineering@alteriom.com

Last Updated: January 16, 2026

Technologies Alteriom Inc. • Montreal, Quebec, Canada