Erooster

A mail suite written in rust meant to be easy to use.

Getting started

Currently the setup is quite rough.

You need some certificates for your server (pem format) and a postgres database.

To get started you need a config.yml like this it can either be in /etc/erooster or the working dir:

tls:
  key_path: "./certs/key.pem"
  cert_path: "./certs/cert.pem"
mail:
  maildir_folders: "./maildir"
  hostname: "localhost"
database:
  postgres_url: ""

The maildir_folders defines where the emails and forlders can be found at. This is close to the maildir format postfix uses. (We use other files to keep track of the state of it)

After that you can just do cargo run --release to run it. The server is reachable via the usual IMAP ports. STARTTLS is currently not supported.

Setting up users

To set up users you can use the eroosterctl command. It will talk to the database. So make sure your config file is set up.

To register a user you simply run eroosterctl register and follow the questions. The password is safed as an argon2 hash inside the database.

To change a password there is the change-password subcommand. You need to provide the old password and the new one. It is planned that admins can also change this using a preencrypted password instead. In the future this is going to be replaced by an integrated web interface users can directly use.

Note: The status subcommand at this time doesn't actually check the server status.

Features

Imap4rev2 compatible
Maildir support
TLS by default
Single binary
Low Resource usage
Postgres first
Integrated SMTP server

Non Goal

Implementing every single peace of optional spec
MySQL/Mariadb support
Support for imap LOGIN command (It is per rev2 spec)
Support for POP3
Support for Exchange

Comparisons

As I made a reddit post some comparisons were made in the commands. You can check them out at https://www.reddit.com/r/rust/comments/uyxxrg/comment/ia7qwcg/?utm_source=share&utm_medium=web2x&context=3

anomalyze / erooster