SlimSMTP

A Simple and Slim SMTP server aiming for a minimalistic and simple design.

Requirements

• Python3.9+
• python-dnspython
• python-pydantic
• python-systemd (Optional)

Installation

$ git clone https://github.com/Torxed/slimSMTP
$ cd slimSMTP
$ python example.py

Configuration

In example.py there is a configuration structure.
You'll need basic understanding of Python to navigate this.

The configuration looks like this:

slimSMTP.Configuration(
    port=25,
    address='',
    realms=[
        slimSMTP.Realm(name='hvornum.se')
    ]
)

Where port is the port the server will listen on.
address is the IP address of the interface you wish to bind to, '' means any interface.
realms is a list of domains that the server should accept mail to.

Meaning when someone sends a mail to github.test+label@hvornum.se, we will only accept it
if we have a realm configured for name='hvornum.se'.