-{ lib, pkgs, config, ... }:
+{ lib, pkgs, config, nodes, ... }:
{
config = lib.mkIf config.myServices.mail.enable {
services.duplyBackup.profiles.mail.excludeFile = ''
UNION SELECT '%s' AS destination
'';
}
+ {
+ dest = "postfix/mysql_sender_relays_maps";
+ 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 = ${config.myEnv.mail.postfix.mysql.database}
+ # INSERT INTO sender_relays
+ # (`from`, owner, relay, login, password, regex, active)
+ # VALUES
+ # ( 'sender@otherhost.org'
+ # , 'me@mail.immae.eu'
+ # , '[otherhost.org]:587'
+ # , 'otherhostlogin'
+ # , AES_ENCRYPT('otherhostpassword', '${config.myEnv.mail.postfix.mysql.password_encrypt}')
+ # , '0'
+ # , '1');
+
+ query = SELECT DISTINCT `owner`
+ FROM sender_relays
+ WHERE
+ ((regex = 1 AND '%s' REGEXP CONCAT('^',`from`,'$') ) OR (regex = 0 AND `from` = '%s'))
+ AND active = 1
+ '';
+ }
+ {
+ dest = "postfix/mysql_sender_relays_hosts";
+ 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 = ${config.myEnv.mail.postfix.mysql.database}
+
+ query = SELECT DISTINCT relay
+ FROM sender_relays
+ WHERE
+ ((regex = 1 AND '%s' REGEXP CONCAT('^',`from`,'$') ) OR (regex = 0 AND `from` = '%s'))
+ AND active = 1
+ '';
+ }
+ {
+ dest = "postfix/mysql_sender_relays_creds";
+ 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 = ${config.myEnv.mail.postfix.mysql.database}
+
+ query = SELECT DISTINCT CONCAT(`login`, ':', AES_DECRYPT(`password`, '${config.myEnv.mail.postfix.mysql.password_encrypt}'))
+ FROM sender_relays
+ WHERE
+ ((regex = 1 AND '%s' REGEXP CONCAT('^',`from`,'$') ) OR (regex = 0 AND `from` = '%s'))
+ AND active = 1
+ '';
+ }
+ {
+ dest = "postfix/ldap_ejabberd_users_immae_fr";
+ user = config.services.postfix.user;
+ group = config.services.postfix.group;
+ permissions = "0440";
+ text = ''
+ server_host = ldaps://${config.myEnv.jabber.ldap.host}:636
+ search_base = ${config.myEnv.jabber.ldap.base}
+ query_filter = ${config.myEnv.jabber.postfix_user_filter}
+ domain = immae.fr
+ bind_dn = ${config.myEnv.jabber.ldap.dn}
+ bind_pw = ${config.myEnv.jabber.ldap.password}
+ result_attribute = immaeXmppUid
+ result_format = ejabberd@localhost
+ version = 3
+ '';
+ }
];
networking.firewall.allowedTCPPorts = [ 25 465 587 ];
config.secrets.fullPaths."postfix/mysql_alias_maps"
config.secrets.fullPaths."postfix/mysql_mailbox_maps"
config.secrets.fullPaths."postfix/mysql_sender_login_maps"
+ config.secrets.fullPaths."postfix/ldap_ejabberd_users_immae_fr"
];
};
services.postfix = {
'';
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}: "|${v}"'') scripts);
mapFiles = let
recipient_maps = let
) config.myEnv.mail.postfix.backup_domains
);
virtual_map = {
- virtual = pkgs.writeText "postfix-virtual" (
+ virtual = let
+ cfg = config.myEnv.monitoring.email_check.eldiron;
+ address = "${cfg.mail_address}@${cfg.mail_domain}";
+ in pkgs.writeText "postfix-virtual" (
builtins.concatStringsSep "\n" (
+ ["${address} testmail@localhost"] ++
lib.attrsets.mapAttrsToList (
- n: v: ''
+ n: v: lib.optionalString v.external ''
script_${n}@mail.immae.eu ${n}@localhost, scripts@mail.immae.eu
''
) config.myEnv.mail.scripts
)
);
};
+ sasl_access = {
+ host_sender_login = with lib.attrsets; let
+ addresses = zipAttrs (lib.flatten (mapAttrsToList
+ (n: v: (map (e: { "${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} ${joined v}") addresses));
+ host_dummy_mailboxes = pkgs.writeText "host-virtual-mailbox"
+ (builtins.concatStringsSep "\n" (["immae-eu@immae.eu dummy"] ++ lib.attrsets.mapAttrsToList (n: v: "${n}@immae.eu dummy") nodes));
+ };
in
- recipient_maps // relay_restrictions // virtual_map;
+ recipient_maps // relay_restrictions // virtual_map // sasl_access;
config = {
### postfix module overrides
readme_directory = "${pkgs.postfix}/share/postfix/doc";
alias_database = "\$alias_maps";
### Virtual mailboxes config
- virtual_alias_maps = "hash:/etc/postfix/virtual mysql:${config.secrets.fullPaths."postfix/mysql_alias_maps"}";
+ 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 != "") "."}${zone.name}"
(zone.withEmail or [])
)
config.myEnv.dns.masterZones
- )));
- virtual_mailbox_maps = "mysql:${config.secrets.fullPaths."postfix/mysql_mailbox_maps"}";
+ ));
+ virtual_mailbox_maps = "hash:/etc/postfix/host_dummy_mailboxes mysql:${config.secrets.fullPaths."postfix/mysql_mailbox_maps"}";
dovecot_destination_recipient_limit = "1";
virtual_transport = "dovecot";
lib.imap1 (i: m: "${m.type}:/etc/postfix/relay_${n}_${toString i}") v.recipient_maps
) config.myEnv.mail.postfix.backup_domains);
smtpd_relay_restrictions = [
- "permit_mynetworks"
- "permit_sasl_authenticated"
"defer_unauth_destination"
] ++ lib.flatten (lib.attrsets.mapAttrsToList (n: v:
if lib.attrsets.hasAttr "relay_restrictions" v
smtp_tls_loglevel = "1";
### Force ip bind for smtp
- smtp_bind_address = config.myEnv.servers.eldiron.ips.main.ip4;
- smtp_bind_address6 = builtins.head config.myEnv.servers.eldiron.ips.main.ip6;
+ smtp_bind_address = config.hostEnv.ips.main.ip4;
+ smtp_bind_address6 = builtins.head config.hostEnv.ips.main.ip6;
- # #Unneeded if postfix can only send e-mail from "self" domains
- # #smtp_sasl_auth_enable = "yes";
- # #smtp_sasl_password_maps = "hash:/etc/postfix/relay_creds";
- # #smtp_sasl_security_options = "noanonymous";
- # #smtp_sender_dependent_authentication = "yes";
- # #sender_dependent_relayhost_maps = "hash:/etc/postfix/sender_relay";
+ # Use some relays when authorized senders are not myself
+ smtp_sasl_mechanism_filter = "plain,login"; # GSSAPI Not correctly supported by postfix
+ smtp_sasl_auth_enable = "yes";
+ smtp_sasl_password_maps =
+ "mysql:${config.secrets.fullPaths."postfix/mysql_sender_relays_creds"}";
+ smtp_sasl_security_options = "noanonymous";
+ smtp_sender_dependent_authentication = "yes";
+ sender_dependent_relayhost_maps =
+ "mysql:${config.secrets.fullPaths."postfix/mysql_sender_relays_hosts"}";
### opendkim, opendmarc, openarc milters
non_smtpd_milters = [
"unix:${config.myServices.mail.milters.sockets.opendkim}"
- "unix:${config.myServices.mail.milters.sockets.opendmarc}"
- "unix:${config.myServices.mail.milters.sockets.openarc}"
];
smtpd_milters = [
"unix:${config.myServices.mail.milters.sockets.opendkim}"
- "unix:${config.myServices.mail.milters.sockets.opendmarc}"
"unix:${config.myServices.mail.milters.sockets.openarc}"
+ "unix:${config.myServices.mail.milters.sockets.opendmarc}"
];
};
enable = true;
enableSmtp = true;
enableSubmission = true;
submissionOptions = {
+ # Don’t use "long form", only commas (cf
+ # http://www.postfix.org/master.5.html long form is not handled
+ # well by the submission function)
smtpd_tls_security_level = "encrypt";
smtpd_sasl_auth_enable = "yes";
smtpd_tls_auth_only = "yes";
smtpd_sasl_path = "private/auth";
smtpd_reject_unlisted_recipient = "no";
smtpd_client_restrictions = "permit_sasl_authenticated,reject";
+ smtpd_relay_restrictions = "permit_sasl_authenticated,reject";
# Refuse to send e-mails with a From that is not handled
smtpd_sender_restrictions =
"reject_sender_login_mismatch,reject_unlisted_sender,permit_sasl_authenticated,reject";
- smtpd_sender_login_maps = "mysql:${config.secrets.fullPaths."postfix/mysql_sender_login_maps"}";
+ smtpd_sender_login_maps = builtins.concatStringsSep "," [
+ "hash:/etc/postfix/host_sender_login"
+ "mysql:${config.secrets.fullPaths."postfix/mysql_sender_relays_maps"}"
+ "mysql:${config.secrets.fullPaths."postfix/mysql_sender_login_maps"}"
+ ];
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 = "eldiron.immae.eu";
+ hostname = config.hostEnv.fqdn;
setSendmail = true;
sslCert = "/var/lib/acme/mail/fullchain.pem";
sslKey = "/var/lib/acme/mail/key.pem";
};
};
};
- security.acme.certs."mail" = {
+ security.acme2.certs."mail" = {
postRun = ''
systemctl restart postfix.service
'';
"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
+ '';
+ };
};
}