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