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|
{ inputs, config, lib, ... }:
with lib;
let
cfg = config.modules.services.nixos-mailserver;
in
{
imports = [ inputs.nixos-mailserver.nixosModules.mailserver ];
options.modules.services.nixos-mailserver = {
enable = mkEnableOption "nixos-mailserver";
webmail = {
enable = mkOption {
type = types.bool;
default = false;
description = lib.mdDoc "Whether to enable roundcube webmail";
};
domain = mkOption { type = types.str; };
realHost = mkOption { type = types.str; };
};
};
config = mkIf cfg.enable {
sops.secrets.sefidel-imap-pass = {
mode = "0440";
owner = "dovecot2";
group = "dovecot2";
};
sops.secrets.system-imap-pass = {
mode = "0440";
owner = "dovecot2";
group = "dovecot2";
};
sops.secrets.internal-imap-pass = {
mode = "0440";
owner = "dovecot2";
group = "dovecot2";
};
systemd.services.dovecot2 = {
serviceConfig.SupplementaryGroups = [ "acme" ];
};
services.postfix = {
dnsBlacklists = [
# TODO: add sources
"b.barracudacentral.org"
"bl.spamcop.net"
];
dnsBlacklistOverrides = ''
exotic.sh OK
sefidel.net OK
sefidel.com OK
192.168.0.0/16 OK
'';
};
# HACK: nixos-mailserver sets up reload hook on 'fqdn', which is 'mail.exotic.sh'.
# Since our cert is a wildcard cert with domain 'exotic.sh', it is excluded from the hook.
security.acme.certs."exotic.sh".reloadServices = [
"postfix.service"
"dovecot2.service"
];
mailserver = {
enable = true;
fqdn = "mail.exotic.sh";
domains = [ "exotic.sh" "nand.moe" "sefidel.com" "sefidel.net" ];
mailboxes = {
Trash = {
auto = "no";
specialUse = "Trash";
};
Junk = {
auto = "subscribe";
specialUse = "Junk";
};
Drafts = {
auto = "subscribe";
specialUse = "Drafts";
};
Sent = {
auto = "subscribe";
specialUse = "Sent";
};
};
loginAccounts = {
"contact@sefidel.com" = {
catchAll = [ "sefidel.com" ];
hashedPasswordFile = config.sops.secrets.sefidel-imap-pass.path;
};
"contact@sefidel.net" = {
aliases = [
"sefidel"
"dev@sefidel.net"
"social@sefidel.net"
"media@sefidel.net"
"bot@sefidel.net"
"public@sefidel.net"
"admin"
"admin@sefidel.net"
"postmaster"
"postmaster@sefidel.net"
];
hashedPasswordFile = config.sops.secrets.sefidel-imap-pass.path;
};
"sef@exotic.sh" = {
aliases = [
"sef"
"sefidel"
"sefidel@exotic.sh"
"admin"
"admin@exotic.sh"
"postmaster"
"postmaster@exotic.sh"
"admin@nand.moe"
"postmaster@nand.moe"
];
hashedPasswordFile = config.sops.secrets.sefidel-imap-pass.path;
};
"system@exotic.sh" = {
aliases = [ "system" "system@nand.moe" ];
hashedPasswordFile = config.sops.secrets.system-imap-pass.path;
};
"internal@exotic.sh" = {
aliases = [ "internal" ];
hashedPasswordFile = config.sops.secrets.internal-imap-pass.path;
};
};
localDnsResolver = false;
certificateScheme = "manual";
certificateFile = "${config.security.acme.certs."exotic.sh".directory}/cert.pem";
keyFile = "${config.security.acme.certs."exotic.sh".directory}/key.pem";
enableImap = true;
enableImapSsl = true;
enableSubmission = true;
enableSubmissionSsl = true;
virusScanning = false;
};
services.roundcube = mkIf cfg.webmail.enable {
enable = true;
hostName = cfg.webmail.realHost;
database.host = "localhost"; # use localDB, pgsql db/user creation is done automatically.
plugins = [
"archive"
"enigma"
"help"
"markasjunk"
"vcard_attachments"
"zipdownload"
];
extraConfig = ''
# STARTTLS required for authn, therefore the domain must match the SSL cert.
$config['smtp_server'] = 'tls://${config.mailserver.fqdn}';
'';
};
services.nginx.virtualHosts.${cfg.webmail.realHost} = {
enableACME = mkForce false; # conflicts with useACMEHost
forceSSL = true;
useACMEHost = cfg.webmail.domain;
};
modules.persistence.directories = [
"/var/lib/dovecot"
"/var/lib/rspamd"
"/var/lib/redis-rspamd"
"/var/vmail"
"/var/dkim"
"/var/sieve"
"/var/spool/mail"
];
networking.firewall.allowedTCPPorts = [ 143 993 465 587 ];
};
}
|
