infrastructure/nixos/hosts/olympus/mailserver/configuration.nix

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# Edit this configuration file to define what should be installed on
# your system. Help is available in the configuration.nix(5) man page
# and in the NixOS manual (accessible by running nixos-help).
{ config, pkgs, ... }:
let vs = config.vault-secrets.secrets;
in {
imports = [ ];
# This value determines the NixOS release from which the default
# settings for stateful data, like file locations and database versions
# on your system were taken. Its perfectly fine and recommended to leave
# this value at the release version of the first install of this system.
# Before changing this value read the documentation for this option
# (e.g. man configuration.nix or on https://nixos.org/nixos/options.html).
system.stateVersion = "22.11"; # Did you read the comment?
networking.firewall.allowedTCPPorts = [ 80 443 ];
# needed as the mailserver configures its down DNS resolver
networking.extraHosts = ''
10.42.42.6 vault.olympus
'';
vault-secrets.secrets.mailserver = { services = [ "dovecot2" "postfix" ]; };
mailserver = {
enable = true;
fqdn = "mail.0x76.dev";
domains = [ "0x76.dev" "meowy.tech" "xirion.net" ];
certificateScheme = "acme-nginx";
enableManageSieve = true;
monitoring = {
alertAddress = "v@0x76.dev";
enable = true;
};
loginAccounts = {
# People
"v@0x76.dev" = {
hashedPasswordFile = "${vs.mailserver}/v@0x76.dev";
catchAll = [ "xirion.net" "0x76.dev" ];
aliases = [
"postmaster@0x76.dev"
"abuse@0x76.dev"
"v@meowy.tech"
"abuse@meowy.tech"
"postmaster@meowy.tech"
"@xirion.net"
"@0x76.dev"
];
};
"laura@meowy.tech" = {
hashedPasswordFile = "${vs.mailserver}/laura@meowy.tech";
aliases = [ "lau@meowy.tech" ];
};
# Services
"gitea@0x76.dev" = {
hashedPasswordFile = "${vs.mailserver}/gitea@0x76.dev";
sendOnly = true;
};
"matrix@meowy.tech" = {
hashedPasswordFile = "${vs.mailserver}/matrix@meowy.tech";
sendOnly = true;
};
"outline@0x76.dev" = {
hashedPasswordFile = "${vs.mailserver}/outline@0x76.dev";
sendOnly = true;
};
"vaultwarden@0x76.dev" = {
hashedPasswordFile = "${vs.mailserver}/vaultwarden@0x76.dev";
sendOnly = true;
};
"snapraid@0x76.dev" = {
hashedPasswordFile = "${vs.mailserver}/snapraid@0x76.dev";
sendOnly = true;
};
"mastodon@xirion.net" = {
hashedPasswordFile = "${vs.mailserver}/mastodon@xirion.net";
sendOnly = true;
};
};
indexDir = "/var/lib/dovecot/indices";
fullTextSearch = {
enable = true;
# index new email as they arrive
autoIndex = true;
# this only applies to plain text attachments, binary attachments are never indexed
indexAttachments = true;
enforced = "body";
memoryLimit = 2000;
autoIndexExclude = [ "\\Junk" ];
};
};
services = {
postfix.relayHost = "smtp.ziggozakelijk.nl";
postfix.relayPort = 587;
roundcube = {
enable = true;
package = pkgs.roundcube.withPlugins
(plugins: [ plugins.persistent_login pkgs.v.roundcube-swipe ]);
plugins = [
"archive"
"managesieve"
"swipe"
# "enigma"
# "markasjunk"
"persistent_login"
];
# this is the url of the vhost, not necessarily the same as the fqdn of
# the mailserver
hostName = "webmail.0x76.dev";
extraConfig = ''
# starttls needed for authentication, so the fqdn required to match
# the certificate
$config['smtp_host'] = "tls://${config.mailserver.fqdn}";
$config['smtp_user'] = "%u";
$config['smtp_pass'] = "%p";
$config['swipe_actions'] = [
'messagelist' => [
'left' => 'archive',
'right' => 'archive',
'down' => 'none'
],
'contactlist' => [
'left' => 'none',
'right' => 'none',
'down' => 'none'
]
];
'';
};
nginx = { enable = true; };
};
security.acme.acceptTerms = true;
security.acme.defaults.email = "v@0x76.dev";
}