-{ lib, pkgs, config, myconfig, ... }:
+{ lib, pkgs, config, myconfig, ... }:
{
config = lib.mkIf config.myServices.mail.enable {
services.duplyBackup.profiles.mail.excludeFile = ''
];
};
services.postfix = {
+ extraAliases = let
+ toScript = name: script: pkgs.writeScript name ''
+ #! ${pkgs.stdenv.shell}
+ mail=$(${pkgs.coreutils}/bin/cat -)
+ output=$(echo "$mail" | ${script} 2>&1)
+ ret=$?
+
+ if [ "$ret" != "0" ]; then
+ echo "$mail" \
+ | ${pkgs.procmail}/bin/formail -i "X-Return-Code: $ret" \
+ | /run/wrappers/bin/sendmail -i scripts_error+${name}@mail.immae.eu
+
+ messageId=$(echo "$mail" | ${pkgs.procmail}/bin/formail -x "Message-Id:")
+ repeat=$(echo "$mail" | ${pkgs.procmail}/bin/formail -X "From:" -X "Received:")
+
+ ${pkgs.coreutils}/bin/cat <<EOF | /run/wrappers/bin/sendmail -i scripts_error+${name}@mail.immae.eu
+ $repeat
+ To: scripts_error+${name}@mail.immae.eu
+ Subject: Log from script error
+ Content-Type: text/plain; charset="UTF-8"
+ Content-Transfer-Encoding: 8bit
+ References:$messageId
+ MIME-Version: 1.0
+ X-Return-Code: $ret
+
+ Error code: $ret
+ Output of message:
+ --------------
+ $output
+ --------------
+ EOF
+ fi
+ '';
+ scripts = lib.attrsets.mapAttrs (n: v:
+ toScript n (pkgs.callPackage (builtins.fetchGit { url = v.src.url; ref = "master"; rev = v.src.rev; }) { scriptEnv = v.env; })
+ ) myconfig.env.mail.scripts;
+ in builtins.concatStringsSep "\n" (lib.attrsets.mapAttrsToList (n: v: ''${n}: "|${v}"'') scripts);
mapFiles = let
recipient_maps = let
name = n: i: "relay_${n}_${toString i}";
)
) myconfig.env.mail.postfix.backup_domains
);
+ virtual_map = {
+ virtual = pkgs.writeText "postfix-virtual" (
+ builtins.concatStringsSep "\n" (
+ lib.attrsets.mapAttrsToList (
+ n: v: ''
+ script_${n}@mail.immae.eu ${n}@localhost, scripts@mail.immae.eu
+ ''
+ ) myconfig.env.mail.scripts
+ )
+ );
+ };
in
- recipient_maps // relay_restrictions;
+ recipient_maps // relay_restrictions // virtual_map;
config = {
### postfix module overrides
readme_directory = "${pkgs.postfix}/share/postfix/doc";
smtp_tls_key_file = lib.mkForce "";
message_size_limit = "1073741824"; # Don't put 0 here, it's not equivalent to "unlimited"
+ mailbox_size_limit = "1073741825"; # Workaround, local delivered mails should all go through scripts
alias_database = "\$alias_maps";
### Virtual mailboxes config
- virtual_alias_maps = "mysql:${config.secrets.fullPaths."postfix/mysql_alias_maps"}";
+ virtual_alias_maps = "hash:/etc/postfix/virtual mysql:${config.secrets.fullPaths."postfix/mysql_alias_maps"}";
virtual_mailbox_domains = myconfig.env.mail.postfix.additional_mailbox_domains
++ lib.remove "localhost.immae.eu" (lib.remove null (lib.flatten (map
(zone: map
# its checks "per user" (milter is not yet dispatched to
# users), so we wrap dovecot-lda inside rspamc per recipient
# here.
- dovecot_exe = "${pkgs.dovecot}/libexec/dovecot/dovecot-lda -f \${sender} -a \${original_recipient} -d \${user}@\${nexthop}";
+ rspamc_dovecot = pkgs.writeScriptBin "rspamc_dovecot" ''
+ #! ${pkgs.stdenv.shell}
+ sender="$1"
+ original_recipient="$2"
+ user="$3"
+
+ ${pkgs.coreutils}/bin/cat - | \
+ (${pkgs.rspamd}/bin/rspamc -h ${config.myServices.mail.rspamd.sockets.worker-controller} -c bayes -d "$user" --mime || true) | \
+ ${pkgs.dovecot}/libexec/dovecot/dovecot-lda -f "$sender" -a "$original_recipient" -d "$user"
+ '';
in [
"flags=DRhu" "user=vhost:vhost"
- "argv=${pkgs.rspamd}/bin/rspamc -h ${config.myServices.mail.rspamd.sockets.worker-controller} -c bayes -d \${user}@\${nexthop} --mime --exec {${dovecot_exe}}"
+ "argv=${rspamc_dovecot}/bin/rspamc_dovecot \${sender} \${original_recipient} \${user}@\${nexthop}"
];
};
};