X-Git-Url: https://git.immae.eu/?a=blobdiff_plain;f=modules%2Fprivate%2Fmail%2Fpostfix.nix;h=c4b09b21ba1dd1ed676164dd44e3e3b412f55c9f;hb=fb7611c1e059b87ba3bdd13229c3f2d96d41a794;hp=bd284cbf1d3a4015b344ac7be7e5c6c35a2a2273;hpb=619e4f46adc15e409122c4e0fa0e0a0b811bb32f;p=perso%2FImmae%2FConfig%2FNix.git diff --git a/modules/private/mail/postfix.nix b/modules/private/mail/postfix.nix index bd284cb..c4b09b2 100644 --- a/modules/private/mail/postfix.nix +++ b/modules/private/mail/postfix.nix @@ -1,4 +1,4 @@ -{ lib, pkgs, config, nodes, name, ... }: +{ lib, pkgs, config, nodes, ... }: { config = lib.mkIf config.myServices.mail.enable { services.duplyBackup.profiles.mail.excludeFile = '' @@ -18,7 +18,7 @@ hosts = unix:${config.myEnv.mail.postfix.mysql.socket} dbname = ${config.myEnv.mail.postfix.mysql.database} query = SELECT DISTINCT destination - FROM forwardings_merge + FROM forwardings WHERE ((regex = 1 AND '%s' REGEXP CONCAT('^',source,'$') ) OR (regex = 0 AND source = '%s')) AND active = 1 @@ -34,30 +34,19 @@ ''; } { - dest = "postfix/mysql_mailbox_maps"; + dest = "postfix/ldap_mailboxes"; user = config.services.postfix.user; group = config.services.postfix.group; permissions = "0440"; text = '' - # We need to specify that option to trigger ssl connection - tls_ciphers = TLSv1.2 - user = ${config.myEnv.mail.postfix.mysql.user} - password = ${config.myEnv.mail.postfix.mysql.password} - hosts = unix:${config.myEnv.mail.postfix.mysql.socket} - dbname = ${config.myEnv.mail.postfix.mysql.database} - result_format = /%d/%u - query = SELECT DISTINCT '%s' - FROM mailboxes - WHERE active = 1 - AND ( - (domain = '%d' AND user = '%u' AND regex = 0) - OR ( - regex = 1 - AND '%d' REGEXP CONCAT('^',domain,'$') - AND '%u' REGEXP CONCAT('^',user,'$') - ) - ) - LIMIT 1 + server_host = ldaps://${config.myEnv.mail.dovecot.ldap.host}:636 + search_base = ${config.myEnv.mail.dovecot.ldap.base} + query_filter = ${config.myEnv.mail.dovecot.ldap.postfix_mailbox_filter} + bind_dn = ${config.myEnv.mail.dovecot.ldap.dn} + bind_pw = ${config.myEnv.mail.dovecot.ldap.password} + result_attribute = immaePostfixAddress + result_format = dummy + version = 3 ''; } { @@ -73,11 +62,15 @@ hosts = unix:${config.myEnv.mail.postfix.mysql.socket} dbname = ${config.myEnv.mail.postfix.mysql.database} query = SELECT DISTINCT destination - FROM forwardings_merge + FROM forwardings WHERE - ((regex = 1 AND '%s' REGEXP CONCAT('^',source,'$') ) OR (regex = 0 AND source = '%s')) + ( + (regex = 1 AND CONCAT(SUBSTRING_INDEX('%u', '+', 1), '@%d') REGEXP CONCAT('^',source,'$') ) + OR + (regex = 0 AND source = CONCAT(SUBSTRING_INDEX('%u', '+', 1), '@%d')) + ) AND active = 1 - UNION SELECT '%s' AS destination + UNION SELECT CONCAT(SUBSTRING_INDEX('%u', '+', 1), '@%d') AS destination ''; } { @@ -171,15 +164,12 @@ networking.firewall.allowedTCPPorts = [ 25 465 587 ]; - nixpkgs.overlays = [ (self: super: { - postfix = super.postfix.override { withMySQL = true; }; - }) ]; users.users."${config.services.postfix.user}".extraGroups = [ "keys" ]; services.filesWatcher.postfix = { restart = true; paths = [ config.secrets.fullPaths."postfix/mysql_alias_maps" - config.secrets.fullPaths."postfix/mysql_mailbox_maps" + config.secrets.fullPaths."postfix/ldap_mailboxes" config.secrets.fullPaths."postfix/mysql_sender_login_maps" config.secrets.fullPaths."postfix/ldap_ejabberd_users_immae_fr" ]; @@ -220,7 +210,13 @@ ''; scripts = lib.attrsets.mapAttrs (n: v: toScript n (pkgs.callPackage (builtins.fetchGit { url = v.src.url; ref = "master"; rev = v.src.rev; }) { scriptEnv = v.env; }) - ) config.myEnv.mail.scripts; + ) config.myEnv.mail.scripts // { + testmail = pkgs.writeScript "testmail" '' + #! ${pkgs.stdenv.shell} + ${pkgs.coreutils}/bin/touch \ + "/var/lib/naemon/checks/email/$(${pkgs.procmail}/bin/formail -x To: | ${pkgs.coreutils}/bin/tr -d ' <>')" + ''; + }; in builtins.concatStringsSep "\n" (lib.attrsets.mapAttrsToList (n: v: ''${n}: "|${v}"'') scripts); mapFiles = let recipient_maps = let @@ -246,8 +242,12 @@ ) config.myEnv.mail.postfix.backup_domains ); virtual_map = { - virtual = pkgs.writeText "postfix-virtual" ( + virtual = let + cfg = config.myEnv.monitoring.email_check.eldiron; + address = "${cfg.mail_address}@${cfg.mail_domain}"; + in pkgs.writeText "postfix-virtual" ( builtins.concatStringsSep "\n" ( + ["${address} testmail@localhost"] ++ lib.attrsets.mapAttrsToList ( n: v: lib.optionalString v.external '' script_${n}@mail.immae.eu ${n}@localhost, scripts@mail.immae.eu @@ -257,11 +257,12 @@ ); }; sasl_access = { - host_sender_login = pkgs.writeText "host-sender-login" - (builtins.concatStringsSep "\n" (lib.flatten (lib.attrsets.mapAttrsToList - (n: v: (map (e: "${e} ${n}@immae.eu") v.emails)) config.myEnv.servers))); - host_dummy_mailboxes = pkgs.writeText "host-virtual-mailbox" - (builtins.concatStringsSep "\n" (lib.attrsets.mapAttrsToList (n: v: "${n}@immae.eu dummy") nodes)); + host_sender_login = with lib.attrsets; let + addresses = zipAttrs (lib.flatten (mapAttrsToList + (n: v: (map (e: { "${e}" = "${n}@immae.eu"; }) v.emails)) config.myEnv.servers)); + joined = builtins.concatStringsSep ","; + in pkgs.writeText "host-sender-login" + (builtins.concatStringsSep "\n" (mapAttrsToList (n: v: "${n} ${joined v}") addresses)); }; in recipient_maps // relay_restrictions // virtual_map // sasl_access; @@ -277,9 +278,13 @@ alias_database = "\$alias_maps"; ### Virtual mailboxes config - virtual_alias_maps = "hash:/etc/postfix/virtual mysql:${config.secrets.fullPaths."postfix/mysql_alias_maps"} ldap:${config.secrets.fullPaths."postfix/ldap_ejabberd_users_immae_fr"}"; + virtual_alias_maps = [ + "hash:/etc/postfix/virtual" + "mysql:${config.secrets.fullPaths."postfix/mysql_alias_maps"}" + "ldap:${config.secrets.fullPaths."postfix/ldap_ejabberd_users_immae_fr"}" + ]; virtual_mailbox_domains = config.myEnv.mail.postfix.additional_mailbox_domains - ++ lib.remove "localhost.immae.eu" (lib.remove null (lib.flatten (map + ++ lib.remove null (lib.flatten (map (zone: map (e: if e.receive then "${e.domain}${lib.optionalString (e.domain != "") "."}${zone.name}" @@ -288,8 +293,10 @@ (zone.withEmail or []) ) config.myEnv.dns.masterZones - ))); - virtual_mailbox_maps = "hash:/etc/postfix/host_dummy_mailboxes mysql:${config.secrets.fullPaths."postfix/mysql_mailbox_maps"}"; + )); + virtual_mailbox_maps = [ + "ldap:${config.secrets.fullPaths."postfix/ldap_mailboxes"}" + ]; dovecot_destination_recipient_limit = "1"; virtual_transport = "dovecot"; @@ -337,6 +344,13 @@ "unix:${config.myServices.mail.milters.sockets.openarc}" "unix:${config.myServices.mail.milters.sockets.opendmarc}" ]; + + smtp_use_tls = true; + smtpd_use_tls = true; + smtpd_tls_chain_files = builtins.concatStringsSep "," [ "/var/lib/acme/mail/full.pem" "/var/lib/acme/mail-rsa/full.pem" ]; + + maximal_queue_lifetime = "6w"; + bounce_queue_lifetime = "6w"; }; enable = true; enableSmtp = true; @@ -364,21 +378,17 @@ ]; smtpd_recipient_restrictions = "permit_sasl_authenticated,reject"; milter_macro_daemon_name = "ORIGINATING"; - smtpd_milters = "unix:${config.myServices.mail.milters.sockets.opendkim}"; + smtpd_milters = builtins.concatStringsSep "," [ + # FIXME: put it back when opensmtpd is upgraded and able to + # rewrite the from header + #"unix:/run/milter_verify_from/verify_from.sock" + "unix:${config.myServices.mail.milters.sockets.opendkim}" + ]; }; - # FIXME: Mail adressed to localhost.immae.eu will still have mx-1 as - # prioritized MX, which provokes "mail for localhost.immae.eu loops - # back to myself" errors. This transport entry forces to push - # e-mails to its right destination. - transport = '' - localhost.immae.eu smtp:[immae.eu]:25 - ''; destination = ["localhost"]; # This needs to reverse DNS hostname = config.hostEnv.fqdn; setSendmail = true; - sslCert = "/var/lib/acme/mail/fullchain.pem"; - sslKey = "/var/lib/acme/mail/key.pem"; recipientDelimiter = "+"; masterConfig = { submissions = { @@ -411,7 +421,7 @@ ${pkgs.dovecot}/libexec/dovecot/dovecot-lda -f "$sender" -a "$original_recipient" -d "$user" ''; in [ - "flags=DRhu" "user=vhost:vhost" + "flags=ODRhu" "user=vhost:vhost" "argv=${rspamc_dovecot}/bin/rspamc_dovecot \${sender} \${original_recipient} \${user}@\${nexthop}" ]; }; @@ -425,5 +435,33 @@ "smtp.immae.eu" = null; }; }; + security.acme.certs."mail-rsa" = { + postRun = '' + systemctl restart postfix.service + ''; + extraDomains = { + "smtp.immae.eu" = null; + }; + }; + system.activationScripts.testmail = { + deps = [ "users" ]; + text = let + allCfg = config.myEnv.monitoring.email_check; + cfg = allCfg.eldiron; + reverseTargets = builtins.attrNames (lib.attrsets.filterAttrs (k: v: builtins.elem "eldiron" v.targets) allCfg); + to_email = cfg': host': + let sep = if lib.strings.hasInfix "+" cfg'.mail_address then "_" else "+"; + in "${cfg'.mail_address}${sep}${host'}@${cfg'.mail_domain}"; + mails_to_receive = builtins.concatStringsSep " " (map (to_email cfg) reverseTargets); + in '' + install -m 0555 -o nobody -g nogroup -d /var/lib/naemon/checks/email + for f in ${mails_to_receive}; do + if [ ! -f /var/lib/naemon/checks/email/$f ]; then + install -m 0644 -o nobody -g nogroup /dev/null -T /var/lib/naemon/checks/email/$f + touch -m -d @0 /var/lib/naemon/checks/email/$f + fi + done + ''; + }; }; }