What does Mycelix-Mail use to filter spam?

It uses MATL, a reputation-based trust layer, to score senders rather than relying on keyword blacklists; the README describes reputation-weighted spam detection alongside detection of Byzantine actors.

What do I need to run it?

The README's prerequisites are Nix with flakes enabled, or Docker with Docker Compose. The Nix path runs nix develop, just setup and just dev; the Docker path runs the full stack with docker compose up -d.

Does it replace a normal email address?

The documented system addresses messages to a did:key identifier and carries them through Holochain rather than SMTP. A bridge for legacy email appears only in the repository's list of planned work, not among its completed features.

Project · email

Mycelix-Mail

Name: Mycelix-Mail
Author: Luminous-Dynamics

a private email app with spam filteringDecentralized email on Holochain with MATL trust-based spam filtering

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How you run it: not recorded
Holochain version: 0.6.0
Activity: archived
Checked: 27 October 2026

What is Mycelix-Mail and what is it for?

Mycelix-Mail is a decentralized email system built on Holochain, where identity and message data stay with the people who use it instead of sitting on a mail provider's servers, and each sender carries a reputation that shapes what reaches an inbox. It belongs to the Mycelix Protocol ecosystem and uses that ecosystem's MATL trust layer to filter spam by reputation rather than by keywords.

Mycelix-Mail is a decentralized email system built on Holochain, developed as part of the Mycelix Protocol ecosystem. Instead of routing mail through a provider's servers, it keeps identity and message data with the people who use it, and it draws on MATL, a trust layer shared with other Mycelix projects, to score senders by reputation.

Its Holochain DNA carries one integrity zome alongside mail and trust-filter zomes, and it is paired with a Rust backend and a React frontend. Spam is handled by MATL reputation scoring rather than keyword blacklists, message contents are encrypted end to end with X25519 key exchange and ChaCha20-Poly1305, and the README also describes IPFS storage for message bodies.

In use, a person sends a message addressed to another participant's decentralized identifier (DID) rather than an email address, and the sender's trust score shapes how the message is treated on arrival. The repository's README documents running that whole stack locally with Nix or Docker. hAppRadar's census, checked in September 2026, records the project's liveness as archived, so those instructions describe a project that is no longer being maintained.

How to get it

Desktop app

Install Nix with flakes enabled, or Docker with Docker Compose, as the repository's README requires.
Clone the repository and enter it: git clone https://github.com/Luminous-Dynamics/Mycelix-Mail.git && cd Mycelix-Mail
With Nix: run nix develop, then just setup, then just dev to start Holochain, the backend and the frontend together.
With Docker: run docker compose up -d, or docker compose --profile with-holochain up -d where a conductor is already set up.
Open the frontend at http://localhost:5173; the backend API is served at http://localhost:3001/api.

Source: https://raw.githubusercontent.com/Luminous-Dynamics/Mycelix-Mail/main/README.md

Questions people ask

What does Mycelix-Mail use to filter spam?: It uses MATL, a reputation-based trust layer, to score senders rather than relying on keyword blacklists; the README describes reputation-weighted spam detection alongside detection of Byzantine actors. source
What do I need to run it?: The README's prerequisites are Nix with flakes enabled, or Docker with Docker Compose. The Nix path runs nix develop, just setup and just dev; the Docker path runs the full stack with docker compose up -d. source
Does it replace a normal email address?: The documented system addresses messages to a did:key identifier and carries them through Holochain rather than SMTP. A bridge for legacy email appears only in the repository's list of planned work, not among its completed features. source

From 2 public sources, checked 23 September 2026.

Try Mycelix-Mail

Code on GitHubOpen on GitHub ↗Last change 15 February 2026.
ReleaseNo GitHub release recorded.
The project's own files do not say how it is run.

Details & sources

Source: Luminous-Dynamics/Mycelix-Mail

Evidence

Last change: api.github.com/repos/Luminous-Dynamics/Mycelix-Maillisted by a third party · seen since 20 October 2026 · github.repository@1
Activity: api.github.com/repos/Luminous-Dynamics/Mycelix-Maillisted by a third party · seen since 20 October 2026 · liveness@1

Compatibility

hdk: 0.6.0 · happ/dna/zomes/mail_messages/Cargo.toml @ 8867c4f
hdi: —
holochain-client: —
happ.yaml: present · holochain/happ.yaml @ 8867c4f
web-happ.yaml: absent

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