Maddy

Maddy is a composable, modern mail server written in Go. It includes everything required to manage users, inboxes, send and receive mails while supporting all important secure protocols and standards.

Installation

Note: Following example describes the usage of an experimental module which is still being reviewed as an open PR and might not be ready for production.

The following example enables the Maddy mail server listening on mail delivery SMTP/Submission ports (25, 587) and IMAP/IMAPS ports (143/993) for mail clients to connect to.

/etc/nixos/configuration.nix

services.maddy = {
  enable = true;
  openFirewall = true;
  tls = {
    certPath = /tmp/example.org.crt;
    keyPath = /tmp/example.org.key;
  };
  imap = {
    port = 143;
    tlsEnable = true;
    tlsPort = 993;
  };
};
services.rspamd.enable = true;