Release branches

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

• For NixOS 23.05
  • Use the SNM branch nixos-23.05
  • Documentation
  • Release notes
• For NixOS 22.11
  • Use the SNM branch nixos-22.11
  • Documentation
  • Release notes
• For NixOS unstable
  • Use the SNM branch master
  • Documentation

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.

Features

v2.0

• Continous Integration Testing
• Multiple Domains
• Postfix MTA
  • smtp on port 25
  • submission tls on port 465
  • submission starttls on port 587
  • lmtp with dovecot
• Dovecot
  • maildir folders
  • imap with tls on port 993
  • pop3 with tls on port 995
  • imap with starttls on port 143
  • pop3 with starttls on port 110
• Certificates
  • manual certificates
  • on the fly creation
  • Let's Encrypt
• Spam Filtering
  • via rspamd
• Virus Scanning
  • via clamav
• DKIM Signing
  • via opendkim
• User Management
  • declarative user management
  • declarative password management
• Sieves
  • A simple standard script that moves spam
  • Allow user defined sieve scripts
  • ManageSieve support
• User Aliases
  • Regular aliases
  • Catch all aliases

In the future

• DKIM Signing
  • Allow a per domain selector

Get in touch

• Subscribe to the mailing list
• Join the Libera Chat IRC channel #nixos-mailserver

Quick Start

   { config, pkgs, ... }:
   let release = "nixos-21.11";
   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-shell -p mkpasswd --run 'mkpasswd -sm bcrypt' > /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.

Development

See the How to Develop SNM documentation page.

Contributors

See the contributor tab

Alternative Implementations

• NixCloud Webservices

Credits

• send mail graphic by tnp_dreamingmao from TheNounProject is licensed under CC BY 3.0
• Logo made with Logomakr.com