nixos-config/modules/mailserver/default.nix
Simon Bruder f945341668
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# SPDX-FileCopyrightText: 2021-2023 Simon Bruder <simon@sbruder.de>
#
# SPDX-License-Identifier: AGPL-3.0-or-later
{ config, lib, pkgs, ... }:
let
cfg = config.sbruder.mailserver;
in
{
options.sbruder.mailserver = with lib; with lib.types; {
enable = mkEnableOption "simple mail server";
fqdn = mkOption {
type = str;
description = ''
FQDN of the mail server
It needs to have a matching reverse DNS record.
By default, an acme certificate with this name has to be present.
See `certDir` for more details.
'';
example = "mail.example.com";
};
storage = mkOption {
type = path;
description = "Location of the storage for mails";
default = "/var/vmail";
};
domains = mkOption {
type = listOf str;
description = "Domains to serve";
example = [ "example.com" "example.org" ];
};
certDir = mkOption {
type = path;
description = "Directory with `fullchain.pem` and `key.pem` for the FQDN. Defaults to the ACME directory of the FQDN.";
default = config.security.acme.certs."${cfg.fqdn}".directory;
};
users = mkOption {
type = listOf (submodule {
options = {
address = mkOption {
type = str;
description = "Primary e-mail address of the user";
example = "jdoe@example.com";
};
passwordHash = mkOption {
type = str;
description = ''
Bcrypt hash of the users password. Please note that it will be
world-readable in the nix store.
You can generate a password with `nix run nixpkgs.apacheHttpd -c
htpasswd -nBC 12 "" | cut -d: -f2`
'';
example = "$2y$05$SHxhwVGx.XCd19HAcb1NKuidUxW1BwU7GeO0ZIcMTc5t2uZoYLVRK";
};
aliases = mkOption {
type = listOf str;
description = ''
A list of aliases for the user.
If multiple users have the same alias defined, mail will be
delivered to both of them.
'';
default = [ ];
example = [
"j.doe@example.com"
"jane.doe@example.com"
"postmaster@example.com"
];
};
};
});
description = "Users of the mail server";
};
cleanHeaders = mkOption {
type = listOf str;
description = "A list of regular expressions that define what headers are filtered";
default = [
"/^\\s*Received:/"
"/^\\s*User-Agent:/"
"/^\\s*X-Mailer:/"
"/^\\s*X-Originating-IP:/"
];
};
};
imports = [
./autoconfig.nix
./dkim.nix
./dns.nix
./dovecot.nix
./postfix.nix
./rspamd.nix
./users.nix
];
}