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README.md

Simple Nixos MailServer

license pipeline status

Release branches

For each NixOS release, we publish a branch. You then have to use the SNM branch corresponding to your NixOS version.

Subscribe to SNM Announcement List This is a very low volume list where new releases of SNM are announced, so you can stay up to date with bug fixes and updates. All announcements are signed by the gpg key with fingerprint

D9FE 4119 F082 6F15 93BD  BD36 6162 DBA5 635E A16A

Features

v2.0

  • Postfix MTA
  • Dovecot
  • Certificates
  • Spam Filtering
  • Virus Scanning
  • DKIM Signing
  • User Management
  • Sieves
  • User Aliases

In the future

  • DKIM Signing

Changelog and How to Stay Up-to-Date

See the mailing list archive

Quick Start

   { config, pkgs, ... }:
   let release = "nixos-20.09";
   in {
     imports = [
       (builtins.fetchTarball {
         url = "https://gitlab.com/simple-nixos-mailserver/nixos-mailserver/-/archive/${release}/nixos-mailserver-${release}.tar.gz";
         # This hash needs to be updated
         sha256 = "0000000000000000000000000000000000000000000000000000";
       })
     ];

     mailserver = {
       enable = true;
       fqdn = "mail.example.com";
       domains = [ "example.com" "example2.com" ];
       loginAccounts = {
           "user1@example.com" = {
               # nix run nixpkgs.apacheHttpd -c htpasswd -nbB "" "super secret password" | cut -d: -f2 > /hashed/password/file/location
               hashedPasswordFile = "/hashed/password/file/location";

               aliases = [
                   "info@example.com"
                   "postmaster@example.com"
                   "postmaster@example2.com"
               ];
           };
       };
     };
   }

For a complete list of options, see default.nix.

How to Set Up a 10/10 Mail Server Guide

Check out the Complete Setup Guide in the project's documentation.

How to Backup

Checkout the Complete Backup Guide. Backups are easy with SNM.

Development

See the How to Develop SNM wiki page.

Release notes

nixos-20.03

  • Rspamd is upgraded to 2.0 which deprecates the SQLite Bayes backend. We then moved to the Redis backend (the default since Rspamd 2.0). If you don't want to relearn the Redis backend from the scratch, we could manually run

    rspamadm statconvert --spam-db /var/lib/rspamd/bayes.spam.sqlite --ham-db /var/lib/rspamd/bayes.ham.sqlite -h 127.0.0.1:6379 --symbol-ham BAYES_HAM --symbol-spam BAYES_SPAM
    

    See the Rspamd migration notes and this SNM Merge Request for details.

Contributors

See the contributor tab

Alternative Implementations

Credits