diff options
author | Linus Heckemann <git@sphalerite.org> | 2020-06-19 07:54:41 +0200 |
---|---|---|
committer | GitHub <noreply@github.com> | 2020-06-19 07:54:41 +0200 |
commit | aea806b8eaf7d049402409ef90343b8fa94c46d9 (patch) | |
tree | 044d0e2e5cc7866ebc0e42a3947e5e38eab53987 /nixos | |
parent | be22631154c9b92400472713092fb8b3cc722efb (diff) | |
parent | d5cc8fb892da85550375bc533e0db5470dd34396 (diff) |
Merge pull request #86177 from mayflower/mailman-upstream
Mailman refactor
Diffstat (limited to 'nixos')
-rw-r--r-- | nixos/modules/services/mail/mailman.nix | 455 | ||||
-rw-r--r-- | nixos/modules/services/mail/mailman.xml | 59 |
2 files changed, 308 insertions, 206 deletions
diff --git a/nixos/modules/services/mail/mailman.nix b/nixos/modules/services/mail/mailman.nix index f5e78b1829338..5c61cfbebf6cd 100644 --- a/nixos/modules/services/mail/mailman.nix +++ b/nixos/modules/services/mail/mailman.nix @@ -6,42 +6,46 @@ let cfg = config.services.mailman; + pythonEnv = pkgs.python3.withPackages (ps: + [ps.mailman ps.mailman-web] + ++ lib.optional cfg.hyperkitty.enable ps.mailman-hyperkitty + ++ cfg.extraPythonPackages); + # This deliberately doesn't use recursiveUpdate so users can # override the defaults. - settings = { + webSettings = { DEFAULT_FROM_EMAIL = cfg.siteOwner; SERVER_EMAIL = cfg.siteOwner; ALLOWED_HOSTS = [ "localhost" "127.0.0.1" ] ++ cfg.webHosts; COMPRESS_OFFLINE = true; - STATIC_ROOT = "/var/lib/mailman-web/static"; + STATIC_ROOT = "/var/lib/mailman-web-static"; MEDIA_ROOT = "/var/lib/mailman-web/media"; + LOGGING = { + version = 1; + disable_existing_loggers = true; + handlers.console.class = "logging.StreamHandler"; + loggers.django = { + handlers = [ "console" ]; + level = "INFO"; + }; + }; + HAYSTACK_CONNECTIONS.default = { + ENGINE = "haystack.backends.whoosh_backend.WhooshEngine"; + PATH = "/var/lib/mailman-web/fulltext-index"; + }; } // cfg.webSettings; - settingsJSON = pkgs.writeText "settings.json" (builtins.toJSON settings); - - mailmanCfg = '' - [mailman] - site_owner: ${cfg.siteOwner} - layout: fhs - - [paths.fhs] - bin_dir: ${pkgs.python3Packages.mailman}/bin - var_dir: /var/lib/mailman - queue_dir: $var_dir/queue - template_dir: $var_dir/templates - log_dir: $var_dir/log - lock_dir: $var_dir/lock - etc_dir: /etc - ext_dir: $etc_dir/mailman.d - pid_file: /run/mailman/master.pid - '' + optionalString cfg.hyperkitty.enable '' - - [archiver.hyperkitty] - class: mailman_hyperkitty.Archiver - enable: yes - configuration: /var/lib/mailman/mailman-hyperkitty.cfg + webSettingsJSON = pkgs.writeText "settings.json" (builtins.toJSON webSettings); + + # TODO: Should this be RFC42-ised so that users can set additional options without modifying the module? + mtaConfig = pkgs.writeText "mailman-postfix.cfg" '' + [postfix] + postmap_command: ${pkgs.postfix}/bin/postmap + transport_file_type: hash ''; + mailmanCfg = lib.generators.toINI {} cfg.settings; + mailmanHyperkittyCfg = pkgs.writeText "mailman-hyperkitty.cfg" '' [general] # This is your HyperKitty installation, preferably on the localhost. This @@ -84,7 +88,7 @@ in { type = types.package; default = pkgs.mailman; defaultText = "pkgs.mailman"; - example = "pkgs.mailman.override { archivers = []; }"; + example = literalExample "pkgs.mailman.override { archivers = []; }"; description = "Mailman package to use"; }; @@ -98,18 +102,6 @@ in { ''; }; - webRoot = mkOption { - type = types.path; - default = "${pkgs.mailman-web}/${pkgs.python3.sitePackages}"; - defaultText = "\${pkgs.mailman-web}/\${pkgs.python3.sitePackages}"; - description = '' - The web root for the Hyperkity + Postorius apps provided by Mailman. - This variable can be set, of course, but it mainly exists so that site - admins can refer to it in their own hand-written web server - configuration files. - ''; - }; - webHosts = mkOption { type = types.listOf types.str; default = []; @@ -124,7 +116,7 @@ in { webUser = mkOption { type = types.str; - default = config.services.httpd.user; + default = "mailman-web"; description = '' User to run mailman-web as ''; @@ -138,6 +130,22 @@ in { ''; }; + serve = { + enable = mkEnableOption "Automatic nginx and uwsgi setup for mailman-web"; + }; + + extraPythonPackages = mkOption { + description = "Packages to add to the python environment used by mailman and mailman-web"; + type = types.listOf types.package; + default = []; + }; + + settings = mkOption { + description = "Settings for mailman.cfg"; + type = types.attrsOf (types.attrsOf types.str); + default = {}; + }; + hyperkitty = { enable = mkEnableOption "the Hyperkitty archiver for Mailman"; @@ -158,6 +166,35 @@ in { config = mkIf cfg.enable { + services.mailman.settings = { + mailman.site_owner = lib.mkDefault cfg.siteOwner; + mailman.layout = "fhs"; + + "paths.fhs" = { + bin_dir = "${pkgs.python3Packages.mailman}/bin"; + var_dir = "/var/lib/mailman"; + queue_dir = "$var_dir/queue"; + template_dir = "$var_dir/templates"; + log_dir = "/var/log/mailman"; + lock_dir = "$var_dir/lock"; + etc_dir = "/etc"; + ext_dir = "$etc_dir/mailman.d"; + pid_file = "/run/mailman/master.pid"; + }; + + mta.configuration = lib.mkDefault "${mtaConfig}"; + + "archiver.hyperkitty" = lib.mkIf cfg.hyperkitty.enable { + class = "mailman_hyperkitty.Archiver"; + enable = "yes"; + configuration = "/var/lib/mailman/mailman-hyperkitty.cfg"; + }; + } // (let + loggerNames = ["root" "archiver" "bounce" "config" "database" "debug" "error" "fromusenet" "http" "locks" "mischief" "plugins" "runner" "smtp"]; + loggerSectionNames = map (n: "logging.${n}") loggerNames; + in lib.genAttrs loggerSectionNames(name: { handler = "stderr"; }) + ); + assertions = let inherit (config.services) postfix; @@ -183,7 +220,17 @@ in { (requirePostfixHash [ "config" "local_recipient_maps" ] "postfix_lmtp") ]; - users.users.mailman = { description = "GNU Mailman"; isSystemUser = true; }; + users.users.mailman = { + description = "GNU Mailman"; + isSystemUser = true; + group = "mailman"; + }; + users.users.mailman-web = lib.mkIf (cfg.webUser == "mailman-web") { + description = "GNU Mailman web interface"; + isSystemUser = true; + group = "mailman"; + }; + users.groups.mailman = {}; environment.etc."mailman.cfg".text = mailmanCfg; @@ -198,197 +245,193 @@ in { import json - with open('${settingsJSON}') as f: + with open('${webSettingsJSON}') as f: globals().update(json.load(f)) with open('/var/lib/mailman-web/settings_local.json') as f: globals().update(json.load(f)) ''; - environment.systemPackages = [ cfg.package ] ++ (with pkgs; [ mailman-web ]); - - services.postfix = { - recipientDelimiter = "+"; # bake recipient addresses in mail envelopes via VERP - config = { - owner_request_special = "no"; # Mailman handles -owner addresses on its own - }; - }; - - systemd.services.mailman = { - description = "GNU Mailman Master Process"; - after = [ "network.target" ]; - restartTriggers = [ config.environment.etc."mailman.cfg".source ]; - wantedBy = [ "multi-user.target" ]; - serviceConfig = { - ExecStart = "${cfg.package}/bin/mailman start"; - ExecStop = "${cfg.package}/bin/mailman stop"; - User = "mailman"; - Type = "forking"; - RuntimeDirectory = "mailman"; - PIDFile = "/run/mailman/master.pid"; - }; - }; - - systemd.services.mailman-settings = { - description = "Generate settings files (including secrets) for Mailman"; - before = [ "mailman.service" "mailman-web.service" "hyperkitty.service" "httpd.service" "uwsgi.service" ]; - requiredBy = [ "mailman.service" "mailman-web.service" "hyperkitty.service" "httpd.service" "uwsgi.service" ]; - path = with pkgs; [ jq ]; - script = '' - mailmanDir=/var/lib/mailman - mailmanWebDir=/var/lib/mailman-web - - mailmanCfg=$mailmanDir/mailman-hyperkitty.cfg - mailmanWebCfg=$mailmanWebDir/settings_local.json - - install -m 0700 -o mailman -g nogroup -d $mailmanDir - install -m 0700 -o ${cfg.webUser} -g nogroup -d $mailmanWebDir - - if [ ! -e $mailmanWebCfg ]; then - hyperkittyApiKey=$(tr -dc A-Za-z0-9 < /dev/urandom | head -c 64) - secretKey=$(tr -dc A-Za-z0-9 < /dev/urandom | head -c 64) - - mailmanWebCfgTmp=$(mktemp) - jq -n '.MAILMAN_ARCHIVER_KEY=$archiver_key | .SECRET_KEY=$secret_key' \ - --arg archiver_key "$hyperkittyApiKey" \ - --arg secret_key "$secretKey" \ - >"$mailmanWebCfgTmp" - chown ${cfg.webUser} "$mailmanWebCfgTmp" - mv -n "$mailmanWebCfgTmp" $mailmanWebCfg - fi - - hyperkittyApiKey="$(jq -r .MAILMAN_ARCHIVER_KEY $mailmanWebCfg)" - mailmanCfgTmp=$(mktemp) - sed "s/@API_KEY@/$hyperkittyApiKey/g" ${mailmanHyperkittyCfg} >"$mailmanCfgTmp" - chown mailman "$mailmanCfgTmp" - mv "$mailmanCfgTmp" $mailmanCfg - ''; - serviceConfig = { - Type = "oneshot"; - # RemainAfterExit makes restartIfChanged work for this service, so - # downstream services will get updated automatically when things like - # services.mailman.hyperkitty.baseUrl change. Otherwise users have to - # restart things manually, which is confusing. - RemainAfterExit = "yes"; + services.nginx = mkIf cfg.serve.enable { + enable = mkDefault true; + virtualHosts."${lib.head cfg.webHosts}" = { + serverAliases = cfg.webHosts; + locations = { + "/".extraConfig = "uwsgi_pass unix:/run/mailman-web.socket;"; + "/static/".alias = webSettings.STATIC_ROOT + "/"; + }; }; }; - systemd.services.mailman-web = { - description = "Init Postorius DB"; - before = [ "httpd.service" "uwsgi.service" ]; - requiredBy = [ "httpd.service" "uwsgi.service" ]; - restartTriggers = [ config.environment.etc."mailman3/settings.py".source ]; - script = '' - ${pkgs.mailman-web}/bin/mailman-web migrate - rm -rf static - ${pkgs.mailman-web}/bin/mailman-web collectstatic - ${pkgs.mailman-web}/bin/mailman-web compress + environment.systemPackages = [ (pkgs.buildEnv { + name = "mailman-tools"; + # We don't want to pollute the system PATH with a python + # interpreter etc. so let's pick only the stuff we actually + # want from pythonEnv + pathsToLink = ["/bin"]; + paths = [pythonEnv]; + postBuild = '' + find $out/bin/ -mindepth 1 -not -name "mailman*" -delete ''; - serviceConfig = { - User = cfg.webUser; - Type = "oneshot"; - # Similar to mailman-settings.service, this makes restartTriggers work - # properly for this service. - RemainAfterExit = "yes"; - WorkingDirectory = "/var/lib/mailman-web"; - }; - }; + }) ]; - systemd.services.mailman-daily = { - description = "Trigger daily Mailman events"; - startAt = "daily"; - restartTriggers = [ config.environment.etc."mailman.cfg".source ]; - serviceConfig = { - ExecStart = "${cfg.package}/bin/mailman digests --send"; - User = "mailman"; - }; - }; - - systemd.services.hyperkitty = { - inherit (cfg.hyperkitty) enable; - description = "GNU Hyperkitty QCluster Process"; - after = [ "network.target" ]; - restartTriggers = [ config.environment.etc."mailman3/settings.py".source ]; - wantedBy = [ "mailman.service" "multi-user.target" ]; - serviceConfig = { - ExecStart = "${pkgs.mailman-web}/bin/mailman-web qcluster"; - User = cfg.webUser; - WorkingDirectory = "/var/lib/mailman-web"; + services.postfix = { + recipientDelimiter = "+"; # bake recipient addresses in mail envelopes via VERP + config = { + owner_request_special = "no"; # Mailman handles -owner addresses on its own }; }; - systemd.services.hyperkitty-minutely = { - inherit (cfg.hyperkitty) enable; - description = "Trigger minutely Hyperkitty events"; - startAt = "minutely"; - restartTriggers = [ config.environment.etc."mailman3/settings.py".source ]; - serviceConfig = { - ExecStart = "${pkgs.mailman-web}/bin/mailman-web runjobs minutely"; - User = cfg.webUser; - WorkingDirectory = "/var/lib/mailman-web"; - }; + systemd.sockets.mailman-uwsgi = lib.mkIf cfg.serve.enable { + wantedBy = ["sockets.target"]; + before = ["nginx.service"]; + socketConfig.ListenStream = "/run/mailman-web.socket"; }; - - systemd.services.hyperkitty-quarter-hourly = { - inherit (cfg.hyperkitty) enable; - description = "Trigger quarter-hourly Hyperkitty events"; - startAt = "*:00/15"; - restartTriggers = [ config.environment.etc."mailman3/settings.py".source ]; - serviceConfig = { - ExecStart = "${pkgs.mailman-web}/bin/mailman-web runjobs quarter_hourly"; - User = cfg.webUser; - WorkingDirectory = "/var/lib/mailman-web"; + systemd.services = { + mailman = { + description = "GNU Mailman Master Process"; + after = [ "network.target" ]; + restartTriggers = [ config.environment.etc."mailman.cfg".source ]; + wantedBy = [ "multi-user.target" ]; + serviceConfig = { + ExecStart = "${pythonEnv}/bin/mailman start"; + ExecStop = "${pythonEnv}/bin/mailman stop"; + User = "mailman"; + Group = "mailman"; + Type = "forking"; + RuntimeDirectory = "mailman"; + LogsDirectory = "mailman"; + PIDFile = "/run/mailman/master.pid"; + }; }; - }; - systemd.services.hyperkitty-hourly = { - inherit (cfg.hyperkitty) enable; - description = "Trigger hourly Hyperkitty events"; - startAt = "hourly"; - restartTriggers = [ config.environment.etc."mailman3/settings.py".source ]; - serviceConfig = { - ExecStart = "${pkgs.mailman-web}/bin/mailman-web runjobs hourly"; - User = cfg.webUser; - WorkingDirectory = "/var/lib/mailman-web"; + mailman-settings = { + description = "Generate settings files (including secrets) for Mailman"; + before = [ "mailman.service" "mailman-web-setup.service" "mailman-uwsgi.service" "hyperkitty.service" ]; + requiredBy = [ "mailman.service" "mailman-web-setup.service" "mailman-uwsgi.service" "hyperkitty.service" ]; + path = with pkgs; [ jq ]; + script = '' + mailmanDir=/var/lib/mailman + mailmanWebDir=/var/lib/mailman-web + + mailmanCfg=$mailmanDir/mailman-hyperkitty.cfg + mailmanWebCfg=$mailmanWebDir/settings_local.json + + install -m 0775 -o mailman -g mailman -d /var/lib/mailman-web-static + install -m 0770 -o mailman -g mailman -d $mailmanDir + install -m 0770 -o ${cfg.webUser} -g mailman -d $mailmanWebDir + + if [ ! -e $mailmanWebCfg ]; then + hyperkittyApiKey=$(tr -dc A-Za-z0-9 < /dev/urandom | head -c 64) + secretKey=$(tr -dc A-Za-z0-9 < /dev/urandom | head -c 64) + + mailmanWebCfgTmp=$(mktemp) + jq -n '.MAILMAN_ARCHIVER_KEY=$archiver_key | .SECRET_KEY=$secret_key' \ + --arg archiver_key "$hyperkittyApiKey" \ + --arg secret_key "$secretKey" \ + >"$mailmanWebCfgTmp" + chown root:mailman "$mailmanWebCfgTmp" + chmod 440 "$mailmanWebCfgTmp" + mv -n "$mailmanWebCfgTmp" "$mailmanWebCfg" + fi + + hyperkittyApiKey="$(jq -r .MAILMAN_ARCHIVER_KEY "$mailmanWebCfg")" + mailmanCfgTmp=$(mktemp) + sed "s/@API_KEY@/$hyperkittyApiKey/g" ${mailmanHyperkittyCfg} >"$mailmanCfgTmp" + chown mailman:mailman "$mailmanCfgTmp" + mv "$mailmanCfgTmp" "$mailmanCfg" + ''; }; - }; - systemd.services.hyperkitty-daily = { - inherit (cfg.hyperkitty) enable; - description = "Trigger daily Hyperkitty events"; - startAt = "daily"; - restartTriggers = [ config.environment.etc."mailman3/settings.py".source ]; - serviceConfig = { - ExecStart = "${pkgs.mailman-web}/bin/mailman-web runjobs daily"; - User = cfg.webUser; - WorkingDirectory = "/var/lib/mailman-web"; + mailman-web-setup = { + description = "Prepare mailman-web files and database"; + before = [ "uwsgi.service" "mailman-uwsgi.service" ]; + requiredBy = [ "mailman-uwsgi.service" ]; + restartTriggers = [ config.environment.etc."mailman3/settings.py".source ]; + script = '' + [[ -e "${webSettings.STATIC_ROOT}" ]] && find "${webSettings.STATIC_ROOT}/" -mindepth 1 -delete + ${pythonEnv}/bin/mailman-web migrate + ${pythonEnv}/bin/mailman-web collectstatic + ${pythonEnv}/bin/mailman-web compress + ''; + serviceConfig = { + User = cfg.webUser; + Group = "mailman"; + Type = "oneshot"; + WorkingDirectory = "/var/lib/mailman-web"; + }; }; - }; - systemd.services.hyperkitty-weekly = { - inherit (cfg.hyperkitty) enable; - description = "Trigger weekly Hyperkitty events"; - startAt = "weekly"; - restartTriggers = [ config.environment.etc."mailman3/settings.py".source ]; - serviceConfig = { - ExecStart = "${pkgs.mailman-web}/bin/mailman-web runjobs weekly"; - User = cfg.webUser; - WorkingDirectory = "/var/lib/mailman-web"; + mailman-uwsgi = mkIf cfg.serve.enable (let + uwsgiConfig.uwsgi = { + type = "normal"; + plugins = ["python3"]; + home = pythonEnv; + module = "mailman_web.wsgi"; + }; + uwsgiConfigFile = pkgs.writeText "uwsgi-mailman.json" (builtins.toJSON uwsgiConfig); + in { + wantedBy = ["multi-user.target"]; + requires = ["mailman-uwsgi.socket" "mailman-web-setup.service"]; + restartTriggers = [ config.environment.etc."mailman3/settings.py".source ]; + serviceConfig = { + # Since the mailman-web settings.py obstinately creates a logs + # dir in the cwd, change to the (writable) runtime directory before + # starting uwsgi. + ExecStart = "${pkgs.coreutils}/bin/env -C $RUNTIME_DIRECTORY ${pkgs.uwsgi.override { plugins = ["python3"]; }}/bin/uwsgi --json ${uwsgiConfigFile}"; + User = cfg.webUser; + Group = "mailman"; + RuntimeDirectory = "mailman-uwsgi"; + }; + }); + + mailman-daily = { + description = "Trigger daily Mailman events"; + startAt = "daily"; + restartTriggers = [ config.environment.etc."mailman.cfg".source ]; + serviceConfig = { + ExecStart = "${pythonEnv}/bin/mailman digests --send"; + User = "mailman"; + Group = "mailman"; + }; }; - }; - systemd.services.hyperkitty-yearly = { - inherit (cfg.hyperkitty) enable; - description = "Trigger yearly Hyperkitty events"; - startAt = "yearly"; - restartTriggers = [ config.environment.etc."mailman3/settings.py".source ]; - serviceConfig = { - ExecStart = "${pkgs.mailman-web}/bin/mailman-web runjobs yearly"; - User = cfg.webUser; - WorkingDirectory = "/var/lib/mailman-web"; + hyperkitty = lib.mkIf cfg.hyperkitty.enable { + description = "GNU Hyperkitty QCluster Process"; + after = [ "network.target" ]; + restartTriggers = [ config.environment.etc."mailman3/settings.py".source ]; + wantedBy = [ "mailman.service" "multi-user.target" ]; + serviceConfig = { + ExecStart = "${pythonEnv}/bin/mailman-web qcluster"; + User = cfg.webUser; + Group = "mailman"; + WorkingDirectory = "/var/lib/mailman-web"; + }; }; - }; + } // flip lib.mapAttrs' { + "minutely" = "minutely"; + "quarter_hourly" = "*:00/15"; + "hourly" = "hourly"; + "daily" = "daily"; + "weekly" = "weekly"; + "yearly" = "yearly"; + } (name: startAt: + lib.nameValuePair "hyperkitty-${name}" (lib.mkIf cfg.hyperkitty.enable { + description = "Trigger ${name} Hyperkitty events"; + inherit startAt; + restartTriggers = [ config.environment.etc."mailman3/settings.py".source ]; + serviceConfig = { + ExecStart = "${pythonEnv}/bin/mailman-web runjobs minutely"; + User = cfg.webUser; + Group = "mailman"; + WorkingDirectory = "/var/lib/mailman-web"; + }; + })); + }; + meta = { + maintainers = with lib.maintainers; [ lheckemann ]; + doc = ./mailman.xml; }; } diff --git a/nixos/modules/services/mail/mailman.xml b/nixos/modules/services/mail/mailman.xml new file mode 100644 index 0000000000000..cbe50ed0b9179 --- /dev/null +++ b/nixos/modules/services/mail/mailman.xml @@ -0,0 +1,59 @@ +<chapter xmlns="http://docbook.org/ns/docbook" + xmlns:xlink="http://www.w3.org/1999/xlink" + xmlns:xi="http://www.w3.org/2001/XInclude" + version="5.0" + xml:id="module-services-mailman"> + <title>Mailman</title> + <para> + <link xlink:href="https://www.list.org">Mailman</link> is free + software for managing electronic mail discussion and e-newsletter + lists. Mailman and its web interface can be configured using the + corresponding NixOS module. Note that this service is best used with + an existing, securely configured Postfix setup, as it does not automatically configure this. + </para> + + <section xml:id="module-services-mailman-basic-usage"> + <title>Basic usage</title> + <para> + For a basic configuration, the following settings are suggested: + <programlisting>{ config, ... }: { + services.postfix = { + enable = true; + relayDomains = ["hash:/var/lib/mailman/data/postfix_domains"]; + sslCert = config.security.acme.certs."lists.example.org".directory + "/full.pem"; + sslKey = config.security.acme.certs."lists.example.org".directory + "/key.pem"; + config = { + transport_maps = ["hash:/var/lib/mailman/data/postfix_lmtp"]; + local_recipient_maps = ["hash:/var/lib/mailman/data/postfix_lmtp"]; + }; + }; + services.mailman = { + <link linkend="opt-services.mailman.enable">enable</link> = true; + <link linkend="opt-services.mailman.serve.enable">serve.enable</link> = true; + <link linkend="opt-services.mailman.hyperkitty.enable">hyperkitty.enable</link> = true; + <link linkend="opt-services.mailman.hyperkitty.enable">webHosts</link> = ["lists.example.org"]; + <link linkend="opt-services.mailman.hyperkitty.enable">siteOwner</link> = "mailman@example.org"; + }; + <link linkend="opt-services.nginx.virtualHosts._name_.enableACME">services.nginx.virtualHosts."lists.example.org".enableACME</link> = true; + <link linkend="opt-services.mailman.hyperkitty.enable">networking.firewall.allowedTCPPorts</link> = [ 25 80 443 ]; +}</programlisting> + </para> + <para> + DNS records will also be required: + <itemizedlist> + <listitem><para><literal>AAAA</literal> and <literal>A</literal> records pointing to the host in question, in order for browsers to be able to discover the address of the web server;</para></listitem> + <listitem><para>An <literal>MX</literal> record pointing to a domain name at which the host is reachable, in order for other mail servers to be able to deliver emails to the mailing lists it hosts.</para></listitem> + </itemizedlist> + </para> + <para> + After this has been done and appropriate DNS records have been + set up, the Postorius mailing list manager and the Hyperkitty + archive browser will be available at + https://lists.example.org/. Note that this setup is not + sufficient to deliver emails to most email providers nor to + avoid spam -- a number of additional measures for authenticating + incoming and outgoing mails, such as SPF, DMARC and DKIM are + necessary, but outside the scope of the Mailman module. + </para> + </section> +</chapter> |