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|
{ config, lib, pkgs, ... }:
with lib;
let
cfg = config.services.spamassassin;
spamassassin-local-cf = pkgs.writeText "local.cf" cfg.config;
in
{
options = {
services.spamassassin = {
enable = mkEnableOption "the SpamAssassin daemon";
debug = mkOption {
type = types.bool;
default = false;
description = "Whether to run the SpamAssassin daemon in debug mode";
};
config = mkOption {
type = types.lines;
description = ''
The SpamAssassin local.cf config
If you are using this configuration:
add_header all Status _YESNO_, score=_SCORE_ required=_REQD_ tests=_TESTS_ autolearn=_AUTOLEARN_ version=_VERSION_
Then you can Use this sieve filter:
require ["fileinto", "reject", "envelope"];
if header :contains "X-Spam-Flag" "YES" {
fileinto "spam";
}
Or this procmail filter:
:0:
* ^X-Spam-Flag: YES
/var/vpopmail/domains/lastlog.de/js/.maildir/.spam/new
To filter your messages based on the additional mail headers added by spamassassin.
'';
example = ''
#rewrite_header Subject [***** SPAM _SCORE_ *****]
required_score 5.0
use_bayes 1
bayes_auto_learn 1
add_header all Status _YESNO_, score=_SCORE_ required=_REQD_ tests=_TESTS_ autolearn=_AUTOLEARN_ version=_VERSION_
'';
default = "";
};
initPreConf = mkOption {
type = with types; either str path;
description = "The SpamAssassin init.pre config.";
apply = val: if builtins.isPath val then val else pkgs.writeText "init.pre" val;
default =
''
#
# to update this list, run this command in the rules directory:
# grep 'loadplugin.*Mail::SpamAssassin::Plugin::.*' -o -h * | sort | uniq
#
#loadplugin Mail::SpamAssassin::Plugin::AccessDB
#loadplugin Mail::SpamAssassin::Plugin::AntiVirus
loadplugin Mail::SpamAssassin::Plugin::AskDNS
# loadplugin Mail::SpamAssassin::Plugin::ASN
loadplugin Mail::SpamAssassin::Plugin::AutoLearnThreshold
#loadplugin Mail::SpamAssassin::Plugin::AWL
loadplugin Mail::SpamAssassin::Plugin::Bayes
loadplugin Mail::SpamAssassin::Plugin::BodyEval
loadplugin Mail::SpamAssassin::Plugin::Check
#loadplugin Mail::SpamAssassin::Plugin::DCC
loadplugin Mail::SpamAssassin::Plugin::DKIM
loadplugin Mail::SpamAssassin::Plugin::DNSEval
loadplugin Mail::SpamAssassin::Plugin::FreeMail
loadplugin Mail::SpamAssassin::Plugin::Hashcash
loadplugin Mail::SpamAssassin::Plugin::HeaderEval
loadplugin Mail::SpamAssassin::Plugin::HTMLEval
loadplugin Mail::SpamAssassin::Plugin::HTTPSMismatch
loadplugin Mail::SpamAssassin::Plugin::ImageInfo
loadplugin Mail::SpamAssassin::Plugin::MIMEEval
loadplugin Mail::SpamAssassin::Plugin::MIMEHeader
# loadplugin Mail::SpamAssassin::Plugin::PDFInfo
#loadplugin Mail::SpamAssassin::Plugin::PhishTag
loadplugin Mail::SpamAssassin::Plugin::Pyzor
loadplugin Mail::SpamAssassin::Plugin::Razor2
# loadplugin Mail::SpamAssassin::Plugin::RelayCountry
loadplugin Mail::SpamAssassin::Plugin::RelayEval
loadplugin Mail::SpamAssassin::Plugin::ReplaceTags
# loadplugin Mail::SpamAssassin::Plugin::Rule2XSBody
# loadplugin Mail::SpamAssassin::Plugin::Shortcircuit
loadplugin Mail::SpamAssassin::Plugin::SpamCop
loadplugin Mail::SpamAssassin::Plugin::SPF
#loadplugin Mail::SpamAssassin::Plugin::TextCat
# loadplugin Mail::SpamAssassin::Plugin::TxRep
loadplugin Mail::SpamAssassin::Plugin::URIDetail
loadplugin Mail::SpamAssassin::Plugin::URIDNSBL
loadplugin Mail::SpamAssassin::Plugin::URIEval
# loadplugin Mail::SpamAssassin::Plugin::URILocalBL
loadplugin Mail::SpamAssassin::Plugin::VBounce
loadplugin Mail::SpamAssassin::Plugin::WhiteListSubject
loadplugin Mail::SpamAssassin::Plugin::WLBLEval
'';
};
};
};
config = mkIf cfg.enable {
environment.etc."mail/spamassassin/init.pre".source = cfg.initPreConf;
environment.etc."mail/spamassassin/local.cf".source = spamassassin-local-cf;
# Allow users to run 'spamc'.
environment.systemPackages = [ pkgs.spamassassin ];
users.users.spamd = {
description = "Spam Assassin Daemon";
uid = config.ids.uids.spamd;
group = "spamd";
};
users.groups.spamd = {
gid = config.ids.gids.spamd;
};
systemd.services.sa-update = {
# Needs to be able to contact the update server.
wants = [ "network-online.target" ];
after = [ "network-online.target" ];
serviceConfig = {
Type = "oneshot";
User = "spamd";
Group = "spamd";
StateDirectory = "spamassassin";
ExecStartPost = "+${pkgs.systemd}/bin/systemctl -q --no-block try-reload-or-restart spamd.service";
};
script = ''
set +e
${pkgs.spamassassin}/bin/sa-update --verbose --gpghomedir=/var/lib/spamassassin/sa-update-keys/
rc=$?
set -e
if [[ $rc -gt 1 ]]; then
# sa-update failed.
exit $rc
fi
if [[ $rc -eq 1 ]]; then
# No update was available, exit successfully.
exit 0
fi
# An update was available and installed. Compile the rules.
${pkgs.spamassassin}/bin/sa-compile
'';
};
systemd.timers.sa-update = {
description = "sa-update-service";
partOf = [ "sa-update.service" ];
wantedBy = [ "timers.target" ];
timerConfig = {
OnCalendar = "1:*";
Persistent = true;
};
};
systemd.services.spamd = {
description = "SpamAssassin Server";
wantedBy = [ "multi-user.target" ];
wants = [ "sa-update.service" ];
after = [
"network.target"
"sa-update.service"
];
serviceConfig = {
User = "spamd";
Group = "spamd";
ExecStart = "+${pkgs.spamassassin}/bin/spamd ${optionalString cfg.debug "-D"} --username=spamd --groupname=spamd --virtual-config-dir=%S/spamassassin/user-%u --allow-tell --pidfile=/run/spamd.pid";
ExecReload = "+${pkgs.coreutils}/bin/kill -HUP $MAINPID";
StateDirectory = "spamassassin";
};
};
};
}
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