various fixes

- fix mailman's confirmation emails not sending
- introduce a stateful /etc/aliases
- configure ldap for postfix

modules/mail.nix

@@ -3,13 +3,6 @@ let
   hostname = "mail.${config.fsr.domain}";
   domain = config.fsr.domain;
   rspamd-domain = "rspamd.${config.fsr.domain}";
-  # brauchen wir das überhaupt?
-  #ldap-aliases = pkgs.writeText "ldap-aliases.cf" ''
-  #server_host = ldap://localhost
-  #search_base = dc=ifsr, dc=de
-  #query_filter = (&(objectClass=posixAccount)(uid=%n))
-  #result_attribute=mail
-  #'';
   dovecot-ldap-args = pkgs.writeText "ldap-args" ''
     uris = ldap://localhost
     dn = uid=search, ou=users, dc=ifsr, dc=de
@@ -26,8 +19,14 @@ in
 {
   sops.secrets."rspamd-password".owner = config.users.users.rspamd.name;
   sops.secrets."dovecot_ldap_search".owner = config.services.dovecot2.user;
+  sops.secrets."postfix_ldap_aliases".owner = config.services.postfix.user;
 
-  networking.firewall.allowedTCPPorts = [ 25 465 587 993 ];
+  networking.firewall.allowedTCPPorts = [
+    25 # insecure SMTP
+    465
+    587 # SMTP
+    993 # IMAP
+  ];
   users.users.postfix.extraGroups = [ "opendkim" ];
 
   services = {
@@ -68,21 +67,21 @@ in
       config = {
         home_mailbox = "Maildir/";
         smtp_use_tls = true;
-        smtp_tls_security_level = "encrypt";
+        # smtp_tls_security_level = "encrypt";
         smtpd_use_tls = true;
-        smtpd_tls_security_level = lib.mkForce "encrypt";
-        smtpd_tls_auth_only = true;
+        # smtpd_tls_security_level = lib.mkForce "encrypt";
+        # smtpd_tls_auth_only = true;
         smtpd_tls_protocols = [
           "!SSLv2"
           "!SSLv3"
           "!TLSv1"
           "!TLSv1.1"
         ];
+        # "reject_non_fqdn_hostname"
         smtpd_recipient_restrictions = [
           "permit_sasl_authenticated"
           "permit_mynetworks"
           "reject_unauth_destination"
-          "reject_non_fqdn_hostname"
           "reject_non_fqdn_sender"
           "reject_non_fqdn_recipient"
           "reject_unknown_sender_domain"
@@ -96,7 +95,9 @@ in
           "permit_mynetworks"
           "reject_unauth_destination"
         ];
-        alias_maps = [ "hash:${../config/aliases}" ];
+        # smtpd_sender_login_maps = [ "ldap:${ldap-senders}" ];
+        alias_maps = [ "hash:/etc/aliases" ];
+        # alias_maps = [ "hash:/etc/aliases" "ldap:${ldap-aliases}" ];
         smtpd_milters = [ "local:/run/opendkim/opendkim.sock" ];
         non_smtpd_milters = [ "local:/var/run/opendkim/opendkim.sock" ];
         smtpd_sasl_auth_enable = true;
@@ -104,7 +105,7 @@ in
         smtpd_sasl_type = "dovecot";
         #mailman stuff
         transport_maps = [ "hash:/var/lib/mailman/data/postfix_lmtp" ];
-        local_recipient_maps = [ "hash:/var/lib/mailman/data/postfix_lmtp" ];
+        local_recipient_maps = [ "hash:/var/lib/mailman/data/postfix_lmtp" "ldap:${config.sops.secrets."postfix_ldap_aliases".path}" ];
       };
     };
     dovecot2 = {

modules/mailman.nix

@@ -11,9 +11,6 @@
     hyperkitty.enable = true;
     enablePostfix = true;
     siteOwner = "mailman@${config.fsr.domain}";
-    settings = {
-      mta.smtp_secure_mode = "SecureMode.STARTTLS";
-    };
     ldap = {
       enable = true;
       serverUri = "ldap://localhost";

secrets/quitte.yaml

@@ -15,6 +15,7 @@ mediawiki:
     postgres: ENC[AES256_GCM,data:XRfUc2PRMJcoILAnm5MWr2Cg5u4e/IhGMUnz/oIQSzY=,iv:8U+qlD1SQzxUyD/6QK4SdwRCDyMODK/lP0IDrLlcQ4U=,tag:2spNMj9dY2wWilOusq24yQ==,type:str]
     initial_admin: ENC[AES256_GCM,data:iET5rz9rygx49NDBjKwqAlRgpeS+jq5iM5zmjnoKcyk=,iv:11iDbCrpzjCdyAB22R8NknJ6vzcpVZXCXB3iWsGWXw0=,tag:1RCyg1ysOWaXKdqqdHqRrw==,type:str]
     ldapprovider: ENC[AES256_GCM,data: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,iv:ycKt8/awCo3HoO6Oa8H77GH9+m+xgR4kiXb7Cbf0wSY=,tag:b6pBoZs+E4CP+V9oZXrcoQ==,type:str]
+postfix_ldap_aliases: ENC[AES256_GCM,data:SFCncYQAY2ZOA4d8YO58HQvUIRpevU6dX3BDv/pnB1JlvNmQH7oy4NZ4zf24/1i11EV7Z0NvPsa4sAqj8xRR++yyzeG9RQk3Pcst3AkFtA+MkNP0ueZJYsvLKyUE6G7UpzVVuLI+L5R121JrRp6+r5xqckOBNCBo73ulb7tC67hSfLA+ZNmDw+bKbshHej4l3hvM/c2sHLbcPp/+vxLXqthPR+y8lf6J/QgZ8Yzw1JxFVDO8ypaWpWZZvA3HbAzRJXxk2zxg+lpmgFsyzTXLZGhvf7NdRHUmTP9OgDFt/efhxpUvDYpDinzVOuFrYJGL/4U0LLvxtGQQaQ==,iv:dUx+BsJWaiZ6MeNB+OhrSxQf+co2USjJM5rKt7OP5GI=,tag:nOVLxEyIRSNnxGa8eHMmFQ==,type:str]
 sops:
     kms: []
     gcp_kms: []
@@ -30,8 +31,8 @@ sops:
             NEJBTHE2end1RDlHRTNFYlZjTjhib2cKmQRHpBKZ2DbQ5CfOwcSPfZAm9fnnpxUk
             +LcR8haK//O3N2uNf9etDW3VsT5ipPucCdFU1m/v9L5tcN6ZP8WP+w==
             -----END AGE ENCRYPTED FILE-----
-    lastmodified: "2023-04-03T21:29:19Z"
-    mac: ENC[AES256_GCM,data:rpUgxzTSUAHjCJKIvCXRGSiJF3G4LyTqQXL1x9yUeEe18WHEBWowllMF4S2sqKDU4WLwElCjz/vU8/W3HjrhHK8DHBRIw+7ztol7e3KZdiRJuj+3yazsxo34DkM4mMvA125llFJhhys3w+9WOrdlY9mVITv8uVfLbSYBDLZ6dAg=,iv:K7QXSE7YixdZcPAJo7vXkPvjFuOzkglIxHQefCFYHig=,tag:7gsDdVKLOvjfTQVU0orreA==,type:str]
+    lastmodified: "2023-07-03T16:18:44Z"
+    mac: ENC[AES256_GCM,data:USYbcrCkagxH2fMkkYab6kviwvaM9dC6BHd+uomsjQQwp2aSElxrz7yJZgHiiWuODwLqC6Cg+i/1NLY1JDyGy1IBehmaW/PFEjpq5RjcY4oIiHWDLBKlVBryZGMlDCc1o5Q5ispK8TksCDP567ogEV1AeFb/f/l4Lp/0lsstQlk=,iv:oyIndbLisTKyJezd0ndpuHesAur57g5d0vZb/nliGfs=,tag:K/hWbcikN1ATgJrzABWD9Q==,type:str]
     pgp:
         - created_at: "2023-04-23T17:48:54Z"
           enc: |