misc_nixos-mailserver/mail-server/rspamd.nix

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# nixos-mailserver: a simple mail server
# Copyright (C) 2016-2018 Robin Raymond
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>
{ config, pkgs, lib, ... }:
let
cfg = config.mailserver;
postfixCfg = config.services.postfix;
rspamdCfg = config.services.rspamd;
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rspamdSocket = "rspamd.service";
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in
{
config = with cfg; lib.mkIf enable {
services.rspamd = {
enable = true;
extraConfig = ''
extended_spam_headers = yes;
'' + (lib.optionalString cfg.virusScanning ''
antivirus {
clamav {
action = "reject";
symbol = "CLAM_VIRUS";
type = "clamav";
log_clean = true;
servers = "/run/clamav/clamd.ctl";
}
}
'');
workers.rspamd_proxy = {
type = "rspamd_proxy";
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bindSockets = [{
socket = "/run/rspamd/rspamd-milter.sock";
mode = "0664";
}];
count = 1; # Do not spawn too many processes of this type
extraConfig = ''
milter = yes; # Enable milter mode
timeout = 120s; # Needed for Milter usually
upstream "local" {
default = yes; # Self-scan upstreams are always default
self_scan = yes; # Enable self-scan
}
'';
};
workers.controller = {
type = "controller";
count = 1;
bindSockets = [{
socket = "/run/rspamd/worker-controller.sock";
mode = "0666";
}];
includes = [];
};
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};
systemd.services.rspamd = {
requires = (lib.optional cfg.virusScanning "clamav-daemon.service");
after = (lib.optional cfg.virusScanning "clamav-daemon.service");
};
systemd.services.postfix = {
after = [ rspamdSocket ];
requires = [ rspamdSocket ];
};
users.extraUsers.${postfixCfg.user}.extraGroups = [ rspamdCfg.group ];
};
}