Address first round of review

First try to install Stalwart as a mail software
nix flake update
2024-12-16 20:00:25 +01:00 · 2024-12-02 20:55:02 +01:00 · 2024-10-26 13:15:27 +02:00
15 changed files with 867 additions and 34 deletions
--- a/.sops.yaml
+++ b/.sops.yaml
@ -5,6 +5,7 @@ keys:
  - &nyarlathotep age1s99d0vlj5qlm287n98jratql5fypvjrxxal0k5jl2aw9dcc8kyvqw5yyt4
  - &bragi age1lqvgpmlemyg9095ujck64u59ma29656zs7a4yxgz4s6u5cld2ccss69jwe
  - &lobon age12nz7dtc0m5wasxm4r9crtkgwnzvauyfp0xh0n8z8jld0arn9ea9qe0agvn
+  - &kaalut age1ktwclxa640l89le6yecm8v2z6hmwr4lusd6x9gyzamhv57887szqtqp59a

 creation_rules:
  - path_regex: nixos/machines/nyarlathotep/.*
@ -25,6 +26,12 @@ creation_rules:
        - *nerf
        - *gonne
        - *lobon
+  - path_regex: nixos/machines/kaalut/.*
+    key_groups:
+      - age:
+        - *nerf
+        - *gonne
+        - *kaalut
  # this is the catchall clause if nothing above machtes. Encrypt to users but not
  # to machines
  - key_groups:
--- a/flake-module.nix
+++ b/flake-module.nix
@ -53,6 +53,12 @@
    _module.args.pkgs = import inputs.nixpkgs {
      inherit system;
      config.permittedInsecurePackages = ["jitsi-meet-1.0.8043"];
+
+      overlays = [
+        (_: _: {
+          alias-to-sieve = inputs.alias-to-sieve.packages.x86_64-linux.default; # add custom package to convert alias files to sieve scripts on the stalwart machine
+        })
+      ];
    };
  };

--- a/flake.lock
+++ b/flake.lock
@ -1,5 +1,25 @@
 {
  "nodes": {
+    "alias-to-sieve": {
+      "inputs": {
+        "flake-parts": "flake-parts",
+        "nixpkgs": "nixpkgs",
+        "rust-overlay": "rust-overlay"
+      },
+      "locked": {
+        "lastModified": 1733169152,
+        "narHash": "sha256-HUJuoOjNdweJ/ZjYrwJ13omhLZrztp+0RTZsFIwRojc=",
+        "ref": "refs/heads/main",
+        "rev": "963c13f80d80dcff748e57061b18b542ba76a463",
+        "revCount": 19,
+        "type": "git",
+        "url": "https://gitea.mathebau.de/fachschaft/alias_to_sieve"
+      },
+      "original": {
+        "type": "git",
+        "url": "https://gitea.mathebau.de/fachschaft/alias_to_sieve"
+      }
+    },
    "blobs": {
      "flake": false,
      "locked": {
@ -21,11 +41,29 @@
        "nixpkgs-lib": "nixpkgs-lib"
      },
      "locked": {
-        "lastModified": 1727826117,
-        "narHash": "sha256-K5ZLCyfO/Zj9mPFldf3iwS6oZStJcU4tSpiXTMYaaL0=",
+        "lastModified": 1730504689,
+        "narHash": "sha256-hgmguH29K2fvs9szpq2r3pz2/8cJd2LPS+b4tfNFCwE=",
        "owner": "hercules-ci",
        "repo": "flake-parts",
-        "rev": "3d04084d54bedc3d6b8b736c70ef449225c361b1",
+        "rev": "506278e768c2a08bec68eb62932193e341f55c90",
+        "type": "github"
+      },
+      "original": {
+        "owner": "hercules-ci",
+        "repo": "flake-parts",
+        "type": "github"
+      }
+    },
+    "flake-parts_2": {
+      "inputs": {
+        "nixpkgs-lib": "nixpkgs-lib_2"
+      },
+      "locked": {
+        "lastModified": 1730504689,
+        "narHash": "sha256-hgmguH29K2fvs9szpq2r3pz2/8cJd2LPS+b4tfNFCwE=",
+        "owner": "hercules-ci",
+        "repo": "flake-parts",
+        "rev": "506278e768c2a08bec68eb62932193e341f55c90",
        "type": "github"
      },
      "original": {
@ -35,11 +73,11 @@
    },
    "impermanence": {
      "locked": {
-        "lastModified": 1727649413,
-        "narHash": "sha256-FA53of86DjFdeQzRDVtvgWF9o52rWK70VHGx0Y8fElQ=",
+        "lastModified": 1731242966,
+        "narHash": "sha256-B3C3JLbGw0FtLSWCjBxU961gLNv+BOOBC6WvstKLYMw=",
        "owner": "nix-community",
        "repo": "impermanence",
-        "rev": "d0b38e550039a72aff896ee65b0918e975e6d48e",
+        "rev": "3ed3f0eaae9fcc0a8331e77e9319c8a4abd8a71a",
        "type": "github"
      },
      "original": {
@ -71,15 +109,15 @@
    },
    "nixpkgs": {
      "locked": {
-        "lastModified": 1728492678,
-        "narHash": "sha256-9UTxR8eukdg+XZeHgxW5hQA9fIKHsKCdOIUycTryeVw=",
-        "owner": "NixOS",
+        "lastModified": 1732014248,
+        "narHash": "sha256-y/MEyuJ5oBWrWAic/14LaIr/u5E0wRVzyYsouYY3W6w=",
+        "owner": "nixos",
        "repo": "nixpkgs",
-        "rev": "5633bcff0c6162b9e4b5f1264264611e950c8ec7",
+        "rev": "23e89b7da85c3640bbc2173fe04f4bd114342367",
        "type": "github"
      },
      "original": {
-        "owner": "NixOS",
+        "owner": "nixos",
        "ref": "nixos-unstable",
        "repo": "nixpkgs",
        "type": "github"
@ -102,28 +140,56 @@
    },
    "nixpkgs-lib": {
      "locked": {
-        "lastModified": 1727825735,
-        "narHash": "sha256-0xHYkMkeLVQAMa7gvkddbPqpxph+hDzdu1XdGPJR+Os=",
+        "lastModified": 1730504152,
+        "narHash": "sha256-lXvH/vOfb4aGYyvFmZK/HlsNsr/0CVWlwYvo2rxJk3s=",
        "type": "tarball",
-        "url": "https://github.com/NixOS/nixpkgs/archive/fb192fec7cc7a4c26d51779e9bab07ce6fa5597a.tar.gz"
+        "url": "https://github.com/NixOS/nixpkgs/archive/cc2f28000298e1269cea6612cd06ec9979dd5d7f.tar.gz"
      },
      "original": {
        "type": "tarball",
-        "url": "https://github.com/NixOS/nixpkgs/archive/fb192fec7cc7a4c26d51779e9bab07ce6fa5597a.tar.gz"
+        "url": "https://github.com/NixOS/nixpkgs/archive/cc2f28000298e1269cea6612cd06ec9979dd5d7f.tar.gz"
      }
    },
-    "nixpkgs-stable": {
+    "nixpkgs-lib_2": {
      "locked": {
-        "lastModified": 1728156290,
-        "narHash": "sha256-uogSvuAp+1BYtdu6UWuObjHqSbBohpyARXDWqgI12Ss=",
+        "lastModified": 1730504152,
+        "narHash": "sha256-lXvH/vOfb4aGYyvFmZK/HlsNsr/0CVWlwYvo2rxJk3s=",
+        "type": "tarball",
+        "url": "https://github.com/NixOS/nixpkgs/archive/cc2f28000298e1269cea6612cd06ec9979dd5d7f.tar.gz"
+      },
+      "original": {
+        "type": "tarball",
+        "url": "https://github.com/NixOS/nixpkgs/archive/cc2f28000298e1269cea6612cd06ec9979dd5d7f.tar.gz"
+      }
+    },
+    "nixpkgs_2": {
+      "locked": {
+        "lastModified": 1728538411,
+        "narHash": "sha256-f0SBJz1eZ2yOuKUr5CA9BHULGXVSn6miBuUWdTyhUhU=",
        "owner": "NixOS",
        "repo": "nixpkgs",
-        "rev": "17ae88b569bb15590549ff478bab6494dde4a907",
+        "rev": "b69de56fac8c2b6f8fd27f2eca01dcda8e0a4221",
        "type": "github"
      },
      "original": {
        "owner": "NixOS",
-        "ref": "release-24.05",
+        "ref": "nixpkgs-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "nixpkgs_3": {
+      "locked": {
+        "lastModified": 1733015953,
+        "narHash": "sha256-t4BBVpwG9B4hLgc6GUBuj3cjU7lP/PJfpTHuSqE+crk=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "ac35b104800bff9028425fec3b6e8a41de2bbfff",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixos-unstable",
        "repo": "nixpkgs",
        "type": "github"
      }
@ -136,11 +202,11 @@
        "nixpkgs-stable": []
      },
      "locked": {
-        "lastModified": 1728727368,
-        "narHash": "sha256-7FMyNISP7K6XDSIt1NJxkXZnEdV3HZUXvFoBaJ/qdOg=",
+        "lastModified": 1732021966,
+        "narHash": "sha256-mnTbjpdqF0luOkou8ZFi2asa1N3AA2CchR/RqCNmsGE=",
        "owner": "cachix",
        "repo": "pre-commit-hooks.nix",
-        "rev": "eb74e0be24a11a1531b5b8659535580554d30b28",
+        "rev": "3308484d1a443fc5bc92012435d79e80458fe43c",
        "type": "github"
      },
      "original": {
@ -151,27 +217,45 @@
    },
    "root": {
      "inputs": {
-        "flake-parts": "flake-parts",
+        "alias-to-sieve": "alias-to-sieve",
+        "flake-parts": "flake-parts_2",
        "impermanence": "impermanence",
        "nixos-mailserver": "nixos-mailserver",
-        "nixpkgs": "nixpkgs",
+        "nixpkgs": "nixpkgs_3",
        "pre-commit-hooks": "pre-commit-hooks",
        "sops-nix": "sops-nix"
      }
    },
+    "rust-overlay": {
+      "inputs": {
+        "nixpkgs": "nixpkgs_2"
+      },
+      "locked": {
+        "lastModified": 1732328983,
+        "narHash": "sha256-RHt12f/slrzDpSL7SSkydh8wUE4Nr4r23HlpWywed9E=",
+        "owner": "oxalica",
+        "repo": "rust-overlay",
+        "rev": "ed8aa5b64f7d36d9338eb1d0a3bb60cf52069a72",
+        "type": "github"
+      },
+      "original": {
+        "owner": "oxalica",
+        "repo": "rust-overlay",
+        "type": "github"
+      }
+    },
    "sops-nix": {
      "inputs": {
        "nixpkgs": [
          "nixpkgs"
-        ],
-        "nixpkgs-stable": "nixpkgs-stable"
+        ]
      },
      "locked": {
-        "lastModified": 1728345710,
-        "narHash": "sha256-lpunY1+bf90ts+sA2/FgxVNIegPDKCpEoWwOPu4ITTQ=",
+        "lastModified": 1733128155,
+        "narHash": "sha256-m6/qwJAJYcidGMEdLqjKzRIjapK4nUfMq7rDCTmZajc=",
        "owner": "Mic92",
        "repo": "sops-nix",
-        "rev": "06535d0e3d0201e6a8080dd32dbfde339b94f01b",
+        "rev": "c6134b6fff6bda95a1ac872a2a9d5f32e3c37856",
        "type": "github"
      },
      "original": {
--- a/flake.nix
+++ b/flake.nix
@ -2,6 +2,9 @@
  description = "Description for the project";

  inputs = {
+    alias-to-sieve = {
+      url = "git+https://gitea.mathebau.de/fachschaft/alias_to_sieve";
+    };
    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
    nixos-mailserver = {
      url = "git+https://gitlab.com/simple-nixos-mailserver/nixos-mailserver.git";
--- a/nixos/machines/kaalut/allowlistPass.yaml
+++ b/nixos/machines/kaalut/allowlistPass.yaml
@ -0,0 +1,52 @@
+allowlistPass:
+    matheball: ENC[AES256_GCM,data:4y83ZJ4=,iv:+B1hTSGs5cskmUA9gLpRHPjhxzvwOrplB+lIbNUKtz4=,tag:ZsKA2A4ltbI3px1Z16EgvA==,type:str]
+    mathebau: ENC[AES256_GCM,data:D8Ri3fI=,iv:usZ6UktgqOGqtWrJjeZsYhHo/01IzT0aw9Nxgmfe35o=,tag:2tQfIcDd9rPFW/7779HSNw==,type:str]
+    mathechor: ENC[AES256_GCM,data:3EILes4=,iv:e3Tjlk+BBi2GyPLvhUeshbL3IqKPKlqSjT6+CrgnjYQ=,tag:R5cpo1+2vxI+HfdOvu2WRw==,type:str]
+    koma: ENC[AES256_GCM,data:bB7px1n5q1+++sctsmIMJg==,iv:DIJGpC9+JyFv3SU9dBVLdnEkRlZzY7DBRAL4zXSbpec=,tag:WaZUGvYtm+5ys2RsBNILog==,type:str]
+sops:
+    kms: []
+    gcp_kms: []
+    azure_kv: []
+    hc_vault: []
+    age:
+        - recipient: age1rasjnr2tlv9y70sj0z0hwpgpxdc974wzg5umtx2pnc6z0p05u3js6r8sln
+          enc: |
+            -----BEGIN AGE ENCRYPTED FILE-----
+            YWdlLWVuY3J5cHRpb24ub3JnL3YxCi0+IFgyNTUxOSBpWW9FZHEwejRaRER1MHJQ
+            VXgyaE1GQmhhNFh1dEtBNjRnZXVqWm5hV25vCjliank4KzFobEZtbitzaXBhT1F6
+            cCtqeVorS1BLMmMzZkVVOEN6NERFdDAKLS0tIGkzUUt1NnBUWUJWTy9Pd2FIeTF0
+            cDVaUHowSEpoRjR3Zm81Z1p5NlYzV1kKMRvC7+3TS5EKjWg/NPnbwvVIikxf+Bpa
+            zNo9jhw3GREMScBXOiarm+xgMZ1e2SRrLrUwfR4DiXI4uvg1Jk/tPg==
+            -----END AGE ENCRYPTED FILE-----
+        - recipient: age1epz92k2rkp43hkrg3u0jgkzhnkwx8y43kag7rvfzwl9wcddelvusyetxl7
+          enc: |
+            -----BEGIN AGE ENCRYPTED FILE-----
+            YWdlLWVuY3J5cHRpb24ub3JnL3YxCi0+IFgyNTUxOSBRYk1LQTVDNGhHWXJZSmsy
+            NEZ0WTNlek4yVnRwL3BKNXYrcm84SzIvNlRZCjlDdXU1a2NRNUVHZmkyK2ltZ3pE
+            bmtmVE5TR1hBcVNhaTBGK2F6VWZ1d2MKLS0tIDVKcXhDbjBncFlsR3FzanRhWWQv
+            Um1jcExjN2RWbHhzY2ZpcWVTWE1IbHMKfRSAmfbk+JDWdhSTSg9GZ+lws5DOHv9T
+            ZO9nQV37X9zFD6sXDWaspG3sf4kJZUCbWjCTKyQL/xmh4+E8+CAXYw==
+            -----END AGE ENCRYPTED FILE-----
+        - recipient: age1dhzugelagj6vge5jjxwwn0522ngf7fhxn04sxy2tm8557rtme5tstprwnj
+          enc: |
+            -----BEGIN AGE ENCRYPTED FILE-----
+            YWdlLWVuY3J5cHRpb24ub3JnL3YxCi0+IFgyNTUxOSBzOXBwTUF3ZXJCTFJOQjVC
+            bGplRDRCQVhtUEJPcnhENEF3UVVnbmVKNnprCjFOZW94ajI2d21RamZKT0xFMmtZ
+            ZzZFYjg3WDBmOVhlaFZyOW83M1NYVXcKLS0tIGltWUJGczNJS0pWTmxaZHU5Wi9t
+            TDRCdStocXRvLzBPUTd2blZFV0IyblkKjufZg39n/TI6BhGhIFNz4jplUx6u3/bo
+            NMbr9uJy/I1sdlfGNaheG/TIGOgFG1KqGkGdwpisU3gUD9uMUo1dvw==
+            -----END AGE ENCRYPTED FILE-----
+        - recipient: age1ktwclxa640l89le6yecm8v2z6hmwr4lusd6x9gyzamhv57887szqtqp59a
+          enc: |
+            -----BEGIN AGE ENCRYPTED FILE-----
+            YWdlLWVuY3J5cHRpb24ub3JnL3YxCi0+IFgyNTUxOSBzdDdsdW44ZlQyMzdJNmsv
+            aTIzVWRoSDhzamlqTDFOemZlc1JQMFdZbFJNCmVZbDVVaDBSVi8yTkdOQ1UySy9X
+            MlhXTzRvNWtqUzQxTlNqQ2RlN2J1OXMKLS0tIC9aZEZMVkFybnRTQmhpM1dzc1lt
+            bDdvdHc3Y1NmeE5WUzl3cXVRc3pmOUkK+9WueS1wDQDJlenec4jJCfynbPnuOFYR
+            HFsWmvEZJ+XhH6N9Q0phCHQgZGiR67FH6CHkCblmb6ZfZcWSEe1oTg==
+            -----END AGE ENCRYPTED FILE-----
+    lastmodified: "2024-12-14T15:53:00Z"
+    mac: ENC[AES256_GCM,data:q+Ad2f5ALcBK4/krvmOGXVfNS05vv138Qo4CqNO2hxzryUEzBe5PGYPcx2yExEOEopsv8NGcugNoGQ4nCgaMc7q+t1Feja6dWI85INUt+sE39ws7QAh9IFa2O06AX1WEsUEpnwl3xLWxyCHgKDoaaTfcUENEcPTSVnMwDr/HiwY=,iv:Z+hh06JAm6yfVkclRFfaPZhg0Gjbz0kFdPlYpvMWr+s=,tag:0QUt2WBubt1kKU0pRykfWQ==,type:str]
+    pgp: []
+    unencrypted_suffix: _unencrypted
+    version: 3.9.2
--- a/nixos/machines/kaalut/backupKey.yaml
+++ b/nixos/machines/kaalut/backupKey.yaml
@ -0,0 +1,48 @@
+backupKey: ENC[AES256_GCM,data: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,iv:ReA4k7S4F8NBE0VBCy9ks6YZJiubdUdP/AhEwc0kHaA=,tag:zagxPVYKQhf/tdK3tJFa2A==,type:str]
+sops:
+    kms: []
+    gcp_kms: []
+    azure_kv: []
+    hc_vault: []
+    age:
+        - recipient: age1rasjnr2tlv9y70sj0z0hwpgpxdc974wzg5umtx2pnc6z0p05u3js6r8sln
+          enc: |
+            -----BEGIN AGE ENCRYPTED FILE-----
+            YWdlLWVuY3J5cHRpb24ub3JnL3YxCi0+IFgyNTUxOSBjSGRWTEd6TVAzWjk2cHRn
+            Wkg1NlhxNXVYVXpDdnFiWmJSejE4SDhuZURFCklQWUFiaHZvbkZ1T21aZHNuME5x
+            NXN1ZHBoQzU4RUc3Y3lJVnMyRjluckUKLS0tIDRRVTdwcVplUFJmajkvWEZ0UlFJ
+            ZWpXTzI2NVhldnRrYnFybzErZXBQaVkK4hi/aksGcLlELTUPjJPoVR518z+Twt6l
+            RCFOnLsmsRu8/pigphbGMjOxYPsEsEpclU2vAobL1H3nPE/uKt4t/Q==
+            -----END AGE ENCRYPTED FILE-----
+        - recipient: age1epz92k2rkp43hkrg3u0jgkzhnkwx8y43kag7rvfzwl9wcddelvusyetxl7
+          enc: |
+            -----BEGIN AGE ENCRYPTED FILE-----
+            YWdlLWVuY3J5cHRpb24ub3JnL3YxCi0+IFgyNTUxOSByN3BGN2IvdkhkcENJZEJD
+            OStNdWw2Q25hSXZHcDczRnRUd3h1ZGhDODA0Clo4cktoL2FUYmlkY2JJZFp6bkVS
+            WHdFeDZxSEU3a0RBMmI3cGk2N05hb0UKLS0tIDdDOElueDhPR1pxVEdmaTg3RVgz
+            eHVGak9sRkEydjdiam5QWHNpRG1hTnMKWqSIdNP6yMw6xoPqmK9Lss2Ztb72T7+l
+            bK4VYCnyuuQ24AhlVHLZdbRbk4Rvp2V7bCTWwTNamrRMJieLMZwt8g==
+            -----END AGE ENCRYPTED FILE-----
+        - recipient: age1dhzugelagj6vge5jjxwwn0522ngf7fhxn04sxy2tm8557rtme5tstprwnj
+          enc: |
+            -----BEGIN AGE ENCRYPTED FILE-----
+            YWdlLWVuY3J5cHRpb24ub3JnL3YxCi0+IFgyNTUxOSBlNmtkRGlCTFYvdEJWZEhv
+            bXY5Z3ZibjRjQTV2c3R4OE1JSXBxeTN4Z0Y0CmU3aUVNN0NEeGgwOExvOFRDc2Jl
+            YlQ3dDJtQ1hvSHNFSzNyNGJMYklrRzAKLS0tIFB0Q21WU0hkOWxLajhRdlZaMGFN
+            OTYzMW9aMERGTVdXUnBZM0hxSzBWYTAK0k+pyltKHe6FfdYPqAQcax/u5r1JKP4q
+            C8qXIuAXY9FI4mV8xyuRZEIDr5A2y3hCCilieGr1KGkAwBZyZhQy4w==
+            -----END AGE ENCRYPTED FILE-----
+        - recipient: age1ktwclxa640l89le6yecm8v2z6hmwr4lusd6x9gyzamhv57887szqtqp59a
+          enc: |
+            -----BEGIN AGE ENCRYPTED FILE-----
+            YWdlLWVuY3J5cHRpb24ub3JnL3YxCi0+IFgyNTUxOSAxZStjM25VQnQ3Y2d3Skxs
+            K3k2NU5yeXUwT1F6SmNUVGpPVDUxeHdKZ0JJClFYcUIzazZ2R1BIbElWS3hCeHFK
+            cjFRY1pIL29YUktiR0t5bm5wT1JzZ1EKLS0tIFRPYi9veS9RZHhIRHNyZjZvL3JY
+            RTk1RE9GRitTMFFoUUQwOWtiTWRwMjQKkoA2wiTAholKq7ngDE/OWZKHjFbDg7WZ
+            efax0e0/riC3EEyvR3kIfjCenc2GBvVoaMgzD3Dra9Gz+3JpM11/+w==
+            -----END AGE ENCRYPTED FILE-----
+    lastmodified: "2024-11-23T09:05:51Z"
+    mac: ENC[AES256_GCM,data:yYBzhvg1g9GQk+Os6wkzNE3FyXIp7N2AnxuzPfexoA0aWXhYD2zQ7ylTiRGZLkbSODezXT0pD9sjYFN8yTXuY5HMIlCYSCPQGIUblZKRqB0EES3JyhQ4bULCMO7pXrsIuAICzoWM9vn7RQ9cVbL3N2rocYiSURhsGuMA47d3QFk=,iv:xS/am6/hLq2sQGB+vMzS6ZqmFr1ZOIDj1l6b56nVMhE=,tag:erNYX6U4/uSlSUBpN7kKiA==,type:str]
+    pgp: []
+    unencrypted_suffix: _unencrypted
+    version: 3.9.1
--- a/nixos/machines/kaalut/configuration.nix
+++ b/nixos/machines/kaalut/configuration.nix
@ -0,0 +1,90 @@
+{config, ...}: {
+  imports = [
+    ./hardware-configuration.nix
+    ../../modules/mail.nix
+    ../../roles
+    ../../roles/vm.nix
+    ../../modules/vmNetwork.nix
+  ];
+
+  # System configuration here
+  services.mathebau-mail = {
+    enable = true;
+    stalwartAdmin = config.sops.secrets.stalwartAdmin.path;
+    # see passwd on azathoth for plaintext or machine secret in encoded format for HTTP Basic AUTH
+    stalwartAdminHash = "$argon2i$v=19$m=4096,t=3,p=1$d0hYOTkzclpzSmFTZUplWnhVeWE$I7q9uB19RWL0oZKaPlMPSlGfFp6FQ/vrx80FFKCsalg";
+    domains = [
+      # lists.mathebau.de is forwarded to another VM and does not need to be listed here.
+      {
+        domain = "matheball.de";
+        allowlistPass = config.sops.secrets."allowlistPass/matheball".path;
+      }
+      {
+        domain = "mathebau.de";
+        allowlistPass = config.sops.secrets."allowlistPass/mathebau".path;
+        virt_aliases = config.sops.secrets."mathebau.aliases".path;
+      }
+      {
+        domain = "mathechor.de";
+        allowlistPass = config.sops.secrets."allowlistPass/mathechor".path;
+        virt_aliases = config.sops.secrets."mathechor.aliases".path;
+      }
+      {
+        domain = "koma89.tu-darmstadt.de";
+        allowlistPass = config.sops.secrets."allowlistPass/koma".path;
+        virt_aliases = config.sops.secrets."koma.aliases".path;
+      }
+    ];
+  };
+
+  networking.hostName = "kaalut";
+  vmNetwork.ipv4 = "192.168.0.17";
+  system.stateVersion = "24.05";
+
+  sops.secrets = let
+    allowlistSops = {
+      sopsFile = ./allowlistPass.yaml;
+      owner = "stalwart-mail";
+      group = "stalwart-mail";
+      mode = "0400";
+    };
+  in {
+    # Password for the HRZ API that gets a list of mailaddresses that we serve
+    "allowlistPass/matheball" = allowlistSops;
+    "allowlistPass/mathebau" = allowlistSops;
+    "allowlistPass/mathechor" = allowlistSops;
+    "allowlistPass/koma" = allowlistSops;
+    # Virtual alias file
+    "mathebau.aliases" = {
+      sopsFile = ./mathebau.aliases.yaml;
+      owner = "stalwart-mail";
+      group = "stalwart-mail";
+      mode = "0440";
+    };
+    "mathechor.aliases" = {
+      sopsFile = ./mathechor.aliases.yaml;
+      owner = "stalwart-mail";
+      group = "stalwart-mail";
+      mode = "0440";
+    };
+    "koma.aliases" = {
+      sopsFile = ./koma.aliases.yaml;
+      owner = "stalwart-mail";
+      group = "stalwart-mail";
+      mode = "0440";
+    };
+    # password for https://stalw.art/docs/auth/authorization/administrator/#fallback-administrator encoded to be supplied in the basic auth header
+    stalwartAdmin = {
+      sopsFile = ./stalwartAdmin.yaml;
+      owner = "stalwart-mail";
+      group = "stalwart-mail";
+      mode = "0400";
+    };
+    backupKey = {
+      sopsFile = ./backupKey.yaml;
+      owner = "root";
+      group = "root";
+      mode = "0400";
+    };
+  };
+}
--- a/nixos/machines/kaalut/hardware-configuration.nix
+++ b/nixos/machines/kaalut/hardware-configuration.nix
@ -0,0 +1,30 @@
+{
+  lib,
+  pkgs,
+  ...
+}: {
+  imports = [];
+
+  fileSystems."/" = {
+    device = "root";
+    fsType = "tmpfs";
+    options = ["size=1G" "mode=755"];
+  };
+  fileSystems."/persist" = {
+    device = "/dev/disk/by-label/nixos";
+    fsType = "btrfs";
+    options = ["subvol=persist"];
+    neededForBoot = true;
+  };
+  fileSystems."/boot" = {
+    device = "/dev/disk/by-label/boot";
+    fsType = "ext4";
+  };
+  fileSystems."/nix" = {
+    device = "/dev/disk/by-label/nixos";
+    fsType = "btrfs";
+    options = ["subvol=nix"];
+  };
+
+  nixpkgs.hostPlatform = lib.mkDefault "x86_64-linux";
+}
--- a/nixos/machines/kaalut/koma.aliases.yaml
+++ b/nixos/machines/kaalut/koma.aliases.yaml
@ -0,0 +1,48 @@
+koma.aliases: ENC[AES256_GCM,data:YXHv59u9hHbkXH9s8CbDmP1adthMLiU3ijCIg/yBfXvwtzWUY45un3D/iP8aIEB31PkfVtmTYcbsrJRU5brPgtev28U9DsTc1UrLdUW7YyAgo8xN0nyte6Qxdv9OfUVmwTg4tY9Tv7WmjgpXuIx2sRglfn42X3S4tVAmqzYNrg==,iv:3PM0wfq4lFG1bV607cGkZ6QgznRk8iLMQ55M/BMMJAg=,tag:npKbdQ4esykcjMcYEVHR5Q==,type:str]
+sops:
+    kms: []
+    gcp_kms: []
+    azure_kv: []
+    hc_vault: []
+    age:
+        - recipient: age1rasjnr2tlv9y70sj0z0hwpgpxdc974wzg5umtx2pnc6z0p05u3js6r8sln
+          enc: |
+            -----BEGIN AGE ENCRYPTED FILE-----
+            YWdlLWVuY3J5cHRpb24ub3JnL3YxCi0+IFgyNTUxOSBBS283ZTdKVTVLaDRDV1N5
+            SGhJQjJWdXJzc1l5OWtCWVdueTJMdjZpUjJzCmtUZFRYR0JXTW15Z0NyMktEbW5w
+            dkk1TjF0dVQ3MlFhNUFTbU0vMFdySWcKLS0tIDZPQmxSVGYzT2dDM244ek95dk9n
+            SnhtQWJic3B2YTM1ZlE3SHVRSjl1YVkKgUXW7JW3WSM5EusBoxQMsBRGwIqqi7Lo
+            DgWLq/P1rruuqRAS8hl4cht3jz6PlCJgVh2xpaM/kfkFS8ZuhVFw4g==
+            -----END AGE ENCRYPTED FILE-----
+        - recipient: age1epz92k2rkp43hkrg3u0jgkzhnkwx8y43kag7rvfzwl9wcddelvusyetxl7
+          enc: |
+            -----BEGIN AGE ENCRYPTED FILE-----
+            YWdlLWVuY3J5cHRpb24ub3JnL3YxCi0+IFgyNTUxOSBKdmcyM3hSUFdlM25UUndu
+            RUhzdEhsakdEdytBUGRyRTFXRzdYK2RBR0dnCmJqOTlvYkZkeld3eDYvRmRmUU5u
+            aHArR0FkZWRtT0hoNTZpS1JmaTRHencKLS0tIGVVSWN0NWQyQWdrcXdQUnQxUjdu
+            MWFZWVQ3RmZZS3FnRkJPdDRrOTZrWG8KVgFqfeBLw5gTBKugfnC4a5OLwOhosSgy
+            3hXbGMrJiBDwOS+70H3L+IwiNSoJ6mL+ufShCTq8wER2L9GTteI8gg==
+            -----END AGE ENCRYPTED FILE-----
+        - recipient: age1dhzugelagj6vge5jjxwwn0522ngf7fhxn04sxy2tm8557rtme5tstprwnj
+          enc: |
+            -----BEGIN AGE ENCRYPTED FILE-----
+            YWdlLWVuY3J5cHRpb24ub3JnL3YxCi0+IFgyNTUxOSAzamM5TDVQM0hnZklsbncx
+            SlBMM0NpcnBBai94czV5WE1Md21EeE1kVXpFClpDVTRqYm5rWFhjVjRPQm1IVWxW
+            WTNlZFo4Y3VVNjZhckZ0RFVlQlV0OEEKLS0tIGJOR3k0OUorYTNXL01KQWJBUzVD
+            V0xidWR0SnBDM01hRlkrTlY4eEIrc1EK1Hye/jrQebkEDQ8muJpgHqBLefjnEJPF
+            GxdANetJLuZeeiOUjaUcbP6tecqZpiWN8fFEXrjNL4vnrHvJ+bR1aA==
+            -----END AGE ENCRYPTED FILE-----
+        - recipient: age1ktwclxa640l89le6yecm8v2z6hmwr4lusd6x9gyzamhv57887szqtqp59a
+          enc: |
+            -----BEGIN AGE ENCRYPTED FILE-----
+            YWdlLWVuY3J5cHRpb24ub3JnL3YxCi0+IFgyNTUxOSBqQURCeGJBYytCdlhrWjF5
+            c1ZrbEFENDF5bTNMaE52SE5CS1dVdWJCNlFzClZtK1QxOWY0dEVRRWY4MEtlZ1N1
+            eGlaYXVLMUJiUi9FckdNcllBRCt4cmMKLS0tIEZuOTZQTm9vWHQ4Y3Z6RVloT0VL
+            OW5ZQWIvU2x1OEN6OW84K0dqRmhGNUUKOA3ugnG/ZD7m1DKrFjpZ8opPnjPtLaQx
+            t8qgGuQIoX6KeUb+YybRAOAPPzl51/m9GSUB43Eanm/tVJpdaew7/g==
+            -----END AGE ENCRYPTED FILE-----
+    lastmodified: "2024-11-23T09:05:51Z"
+    mac: ENC[AES256_GCM,data:L29+n5e38RVgVT71y96EbrboHZigbCUvv1gZ+uTWEchOmB8+pgamKhF/m3mpI1iauKtkNlkcS7NbtsEhbLumEHAibJ1H2EZdbWKB53m0RZMCWdZKV+49DenLjROljWMC+mXs0zIir+ts3mhD3ORhQZVBgs/svfkgIyPkcl0wHaE=,iv:ipUpydj18/fgFgwoD0NDjmwLXM+vfkC85I3uvmG9GLE=,tag:sA1UVTquN7cbWAMh9vF5cg==,type:str]
+    pgp: []
+    unencrypted_suffix: _unencrypted
+    version: 3.9.1
--- a/nixos/machines/kaalut/mathebau.aliases.yaml
+++ b/nixos/machines/kaalut/mathebau.aliases.yaml
--- a/nixos/machines/kaalut/mathechor.aliases.yaml
+++ b/nixos/machines/kaalut/mathechor.aliases.yaml
@ -0,0 +1,48 @@
+mathechor.aliases: ENC[AES256_GCM,data:VKEGY6KVtgKApnV7N2e2cqy9erDWQ2fb88Gwcpp5th/t0VGp16KGDtGiuQXhY80j6dDIcQMd9bLHzqAzc4+i/WhmEPhiXUkGiEKuarMfvqNl1LBlXFCoIrUXMMSIqab9q+fE3ignVQapE/YZt9aniyvg1prcmBcwIy9rDoHkiTY006ux5CM+vX0F60ADX8Nf6Qmn/JncPxXgq2jYsBxjXPj7BwJaair/+nxrbVf0,iv:Elj1NDeR1fdIIjIbjvkV3BmcVAKjwdMfknuNxMXJsa4=,tag:AkXWQ8sTMLsd7a+MfRcF/w==,type:str]
+sops:
+    kms: []
+    gcp_kms: []
+    azure_kv: []
+    hc_vault: []
+    age:
+        - recipient: age1rasjnr2tlv9y70sj0z0hwpgpxdc974wzg5umtx2pnc6z0p05u3js6r8sln
+          enc: |
+            -----BEGIN AGE ENCRYPTED FILE-----
+            YWdlLWVuY3J5cHRpb24ub3JnL3YxCi0+IFgyNTUxOSBjMlRsWnkrREVaQitsWHMy
+            WHZFVG1qN25QbWFHcUxNS1Z0SFRDd1oxeG5RCi8wNUhkeWh2VjI4ZGowM1ExaExh
+            SE1yVGFTUHZadUdDL3pxaGdKTHQ0VTgKLS0tIHVNM2xlOFNNS3dFalJqZUtPODRn
+            b2NOTHpXSUVyaFRJNG5ONCt0TTVjOEkKYld7KN995QxdrGBVRYgCxO7kGwsiq+cp
+            iQJTjMdoFygIrTkgE5Rj89/GCiVe0+yAWJuQF7PEnC3cyq0M1g+fzw==
+            -----END AGE ENCRYPTED FILE-----
+        - recipient: age1epz92k2rkp43hkrg3u0jgkzhnkwx8y43kag7rvfzwl9wcddelvusyetxl7
+          enc: |
+            -----BEGIN AGE ENCRYPTED FILE-----
+            YWdlLWVuY3J5cHRpb24ub3JnL3YxCi0+IFgyNTUxOSBPRFJCeXhwQVFSWmgzNHBu
+            SHlTTGtiRkI5bmhKa1B0QTZMY3FERmlUd0FBCk1vOUpydEFZUExpR2hpWm9mRHpE
+            dk9MQ042K0FpSVJ3dUlQcktGT2k1VjAKLS0tIHpGRmwzNE01YkV1TW94RkNmMjN4
+            YnNXZUlta3NMVW9Cc3V2T0t4R01RSlkKNTW3gnF49BuPwF3jwciOYThJe+gJa0a6
+            WKYt+aJuHi0a4y5rS/wfttij+hS5vYVNOrgfJ5bGinkNuAygA2hMOg==
+            -----END AGE ENCRYPTED FILE-----
+        - recipient: age1dhzugelagj6vge5jjxwwn0522ngf7fhxn04sxy2tm8557rtme5tstprwnj
+          enc: |
+            -----BEGIN AGE ENCRYPTED FILE-----
+            YWdlLWVuY3J5cHRpb24ub3JnL3YxCi0+IFgyNTUxOSB6MjZOR1dwb3RjZnlNNW4v
+            SzJnT1BRVktWNDI5S2Z2NnhQQzdNeS9ralI0CnN0SU9ESEV3ZCtRQmpZK3VZOGYx
+            Y3FVUy9zY3RZcGxyVmttVzFJL1haYWsKLS0tIENGRW1KZkpUdldOZWgzSXVoenpX
+            dTVpNUpWallSTzJ3cEZJTXk3c2t1czgKzJCwhMspzAsjzwSRdSPUoseEAsKp8HFy
+            cL9if92ar68HMHTdoy0Zvy+5AbxKUxgXZ2t8cDgkL8bNG5Ri2xYaUA==
+            -----END AGE ENCRYPTED FILE-----
+        - recipient: age1ktwclxa640l89le6yecm8v2z6hmwr4lusd6x9gyzamhv57887szqtqp59a
+          enc: |
+            -----BEGIN AGE ENCRYPTED FILE-----
+            YWdlLWVuY3J5cHRpb24ub3JnL3YxCi0+IFgyNTUxOSBtNm5xUGkrK1dYd2ZtamFW
+            NXpNMEtvNTl3U3MzeVNSbVJOdGdlWGsxRHlZCllQVmNtYzBJNDc2Y0dmUlNsbTF5
+            RHB4QWZ1VGNFVkx1Q0hNK3FDTTRrUlkKLS0tIG9hbldDeHk0YmVZV2IwMXNpYStU
+            Q29uVHBCb2pTeWVJVmVXbWpycnFneWMKnDmu5917dddV8vjO0L8OP3wXMjDi46Ro
+            b9eOY8l74jm4sTxyKNvnkEjD6iHn1t7f8J7HAbWrpZY+J0i77nrzQw==
+            -----END AGE ENCRYPTED FILE-----
+    lastmodified: "2024-11-23T09:05:51Z"
+    mac: ENC[AES256_GCM,data:Xnulo0681LtgH9SZt9DL3nd9bSDH+TCQDvbKdggVBJ66rxBiKmlbu5MAblAWqxbdZ6EelldaVeX9OaL2rYJoYbTWxzw2iuPieldp3Ah3PsTI2C8W+UD9KVHcB+3AMOmVmJZzFlZvTwyfPfZRNNb0HAijkN97P3fP0r1Iqf3YjiI=,iv:vhu38HM4e+PyyChXvI87LWSGtKQQiXUr4MKrI7kotzk=,tag:eNuQD74kUO+duqEXNbLJBw==,type:str]
+    pgp: []
+    unencrypted_suffix: _unencrypted
+    version: 3.9.1
--- a/nixos/machines/kaalut/stalwartAdmin.yaml
+++ b/nixos/machines/kaalut/stalwartAdmin.yaml
@ -0,0 +1,48 @@
+stalwartAdmin: ENC[AES256_GCM,data:4vpvxtFa2KiF3ojl+cw3ic/MI7UM9JQCQn76bidYvbW31zgF,iv:DtLAi68oQRf3U69uFK0Cz4qHMkxM6NnB3lVYft/DtqQ=,tag:HYm2mdpTuXNHdQIv2Rkwig==,type:str]
+sops:
+    kms: []
+    gcp_kms: []
+    azure_kv: []
+    hc_vault: []
+    age:
+        - recipient: age1rasjnr2tlv9y70sj0z0hwpgpxdc974wzg5umtx2pnc6z0p05u3js6r8sln
+          enc: |
+            -----BEGIN AGE ENCRYPTED FILE-----
+            YWdlLWVuY3J5cHRpb24ub3JnL3YxCi0+IFgyNTUxOSAxcTRqZXRoNTJCdFhQUG9o
+            Qmx2cVl0TWdaQzZZUThTOEpQdjIxVFh3eHhzCjlHWHhSYmM1ajYrdjl3Nm90TkRh
+            YWE3c0hJYzdFWXpZUGI0cHBQdThSWWsKLS0tIFh5M20wV2ZZbzllS1BNOGtaRUVF
+            MFN3bENrZ0tDMllJM1E5MWkyZ2thZEkKfZlUzE5t8K0oHZYOSVItvRJZP2MJlA7N
+            SLozGlpwCoZKWP6qAqP5jisTG/npQRhcqwkd7P39EytO2HXU9m8sJA==
+            -----END AGE ENCRYPTED FILE-----
+        - recipient: age1epz92k2rkp43hkrg3u0jgkzhnkwx8y43kag7rvfzwl9wcddelvusyetxl7
+          enc: |
+            -----BEGIN AGE ENCRYPTED FILE-----
+            YWdlLWVuY3J5cHRpb24ub3JnL3YxCi0+IFgyNTUxOSBkVldRVmtPUzFxV0ltK0d2
+            SHRqbXZCTW5wZUtZM0ZkL3lXOEJmVXdjMXdZCjE5MUUrSEhnWHRSOVhtWWQxdndv
+            ckUzTFl4ZXM5VHBTRlY3SzVsZWpxNUEKLS0tIEtpbTBhaWR1c3RhSW5nclZvMTdO
+            eTBYL1Q5cXNvTGkvQzJMWHZHaEZseVUK5w2MPZMquT0luq+tl2owLrrSBx9KPskS
+            FupcAZTcCo+YsemKLjJ6GlHch5x8Mw98NHS5h1AKxwZYtcfwg3lfbQ==
+            -----END AGE ENCRYPTED FILE-----
+        - recipient: age1dhzugelagj6vge5jjxwwn0522ngf7fhxn04sxy2tm8557rtme5tstprwnj
+          enc: |
+            -----BEGIN AGE ENCRYPTED FILE-----
+            YWdlLWVuY3J5cHRpb24ub3JnL3YxCi0+IFgyNTUxOSBpUitNeHNWOTVjWkF4YWhB
+            MnEwWDFnT0wyNUx3VmlQMmZTRmZRbXBGOVFvCmpoOHZZSXRweUtZaHZ6azF2Q3dK
+            NFBwa242U3JSVjhtOUlRTUZuakhkcXcKLS0tIEN5TGhMRFphdEpvcU5zTmVlTTJN
+            d2JRc2p4YmpuUHAycUoxc1FuZmxhemcKOgGyieFVS57tsvUtVooahqswYZH0Fi6+
+            jxM6Ga/tIM/bZ/qSwYrNlNiz0XHm8/XFH2s8sxypDZ+NHGLs3zGjsw==
+            -----END AGE ENCRYPTED FILE-----
+        - recipient: age1ktwclxa640l89le6yecm8v2z6hmwr4lusd6x9gyzamhv57887szqtqp59a
+          enc: |
+            -----BEGIN AGE ENCRYPTED FILE-----
+            YWdlLWVuY3J5cHRpb24ub3JnL3YxCi0+IFgyNTUxOSBERTdvSTZ3eEVNbEZpUnQ2
+            ZC85blRQVzgrckljcnZPeVhZWUxGd01tankwCjBCZHdWRnpoZkdRQWdoK0VmOFVy
+            VmpiOFkvNisrWmp2NE1kalB4dUhzdWsKLS0tIEJ6T1FsTFlIMUVWd3FwbEtldmlC
+            UjFHWHNZci8zRlFXNVpNNk5oSUNvaTQKW9T88GflSysJwqMnBrc/jZVwL/fRdg2a
+            5XysXb/dCo4uNxLQit/KNSpINj7rAkf4Pk819DO6SKiIiuIJDXw9cA==
+            -----END AGE ENCRYPTED FILE-----
+    lastmodified: "2024-11-23T11:43:23Z"
+    mac: ENC[AES256_GCM,data:GZ1Q67n43WU3fDQd6SGsD2EZgoaq1mzh5biy42cx6FQWlveK5lhb0F2HUuWWv5zSHKpslEPD6odvkQmMNCRY8NsvT3+KBAnHHU0aHzM9AEV27cDL4x6oBvO52EMxsNCMm+fXPD1CubQxfbfvx/aIuqb1sovgKGgwf4u6yqIrHJ0=,iv:ExX+ySMXhF/c1w2IP7y8mdlcy8W9Zxiy6X67b2f4AeY=,tag:shxQJdaW3HsG6sNY+zDNCA==,type:str]
+    pgp: []
+    unencrypted_suffix: _unencrypted
+    version: 3.9.1
--- a/nixos/modules/borgbackup.nix
+++ b/nixos/modules/borgbackup.nix
@ -76,6 +76,13 @@ in {
          path = "/var/lib/backups/ithaqua";
          allowSubRepos = true;
        };
+        kaalut = {
+          authorizedKeysAppendOnly = [
+            "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIFcAJkEXcvrDEQf1zRhBXLe1CSHOTooM3qy0KMfS9oug Kaalut Backup"
+          ];
+          path = "/var/lib/backups/kaalut";
+          allowSubRepos = true;
+        };
        lobon = {
          authorizedKeysAppendOnly = [
            "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAICEptjf1UWRlo6DG9alAIRwkSDUAVHwDKkHC6/DeYKzi Lobon Backup"
--- a/nixos/modules/mail.nix
+++ b/nixos/modules/mail.nix
@ -0,0 +1,314 @@
+/*
+* Building: For some reason, stalwart is not served by cache.nixos.org and thus needs to be built locally.
+*   Be aware that this needs some hours, about 12Gb RAM and a few Gb free space in /tmp.
+*   If you only want to deploy configuration changes and no software updates, consider building on the target VM.
+*   It has stalwart in its nix store and does not need to rebuild it.
+* Forwarding mails: Update the Sops-secrets in the machine directory, rebuild on the VM and deploy.
+*   Everything else should happen automatically but new redirects might take up to two hours due HRZ infrastructure.
+* Using the web admin interface: Set your SSH to do portforwarding of some local port to port 80 of the VM and
+*   and use your personal admin account or create one using the fallback admin password.
+* Create users with mail boxes: Go to the admin interface and create them.
+* Stalwart mailserver docs can be found at https://stalw.art/docs
+* DNS-Records: Collect the right DNS entries from the management interface and copy them to the DNS hoster. Caution:
+*   Not all entries are applicable since we relay via HRZ.
+*/
+{
+  config,
+  lib,
+  pkgs,
+  ...
+}: let
+  inherit
+    (lib)
+    mkIf
+    mkEnableOption
+    mkOption
+    ;
+  inherit (lib.types) listOf strMatching str path;
+  cfg = config.services.mathebau-mail;
+in {
+  options.services.mathebau-mail = {
+    enable = mkEnableOption "mathebau mail service";
+    stalwartAdmin = mkOption {
+      type = path;
+      description = "Path to a file that contains the stalwart fallback admin password encoded for HTTP Basic Auth";
+    };
+    stalwartAdminHash = mkOption {
+      type = str;
+      description = "String containing the hashed fallback admin password";
+    };
+    domains = mkOption {
+      type = listOf (lib.types.submodule {
+        options = {
+          domain = mkOption {
+            description = "Domain name that we serve. We also push its addresses to HRZ.";
+            type = strMatching "^([a-z0-9]+(-[a-z0-9]+)*\.)+[a-z]{2,}$"; #Regex from https://www.oreilly.com/library/view/regular-expressions-cookbook/9781449327453/ch08s15.html
+          };
+          allowlistPass = mkOption {
+            description = "Password file for the HRZ API that gets a list of mailaddresses that we serve";
+            type = path;
+          };
+          virt_aliases = mkOption {
+            description = "File path to a virtual alias file applicable for this domain";
+            type = path;
+            default = "/dev/null"; # there might not be an alias file and reading an empty one works with our implementation
+          };
+        };
+      });
+    };
+  };
+
+  config = mkIf cfg.enable {
+    services = {
+      stalwart-mail = {
+        enable = true;
+        openFirewall = true;
+        settings = {
+          server = {
+            lookup.default.hostname = "fb04184.mathematik.tu-darmstadt.de"; # Because the DNS PTR of 130.83.2.184 is this and this should be used in SMTP EHLO.
+            listener = {
+              # Do not enable JMAP until https://github.com/stalwartlabs/mail-server/issues/618 is resolved!
+              # Luckily, this bug does not apply to IMAP.
+              "smtp" = {
+                bind = ["[::]:25"];
+                protocol = "smtp";
+              };
+              "submissions" = {
+                bind = ["[::]:465"];
+                protocol = "smtp";
+                tls.implicit = true;
+              };
+              "imaptls" = {
+                bind = ["[::]:993"];
+                protocol = "imap";
+                tls.implicit = true;
+              };
+              "management" = {
+                # Cthulhu forwards requests for http://fb04184.mathematik.tu-darmstadt.de/.well-known/acme-challenge/ http://imap.mathebau.de/.well-known/acme-challenge/ and http://smtp.mathebau.de/.well-known/acme-challenge/
+                # for TLS certificate challenge validation
+                # whereas the rest of the management interface is not available publically.
+                # It can be reached via SSH and portforwarding.
+                bind = ["[::]:80"];
+                protocol = "http";
+              };
+            };
+          };
+          acme.letsencrypt = {
+            directory = "https://acme-v02.api.letsencrypt.org/directory"; # This setting is necessary for this block to be activated
+            challenge = "http-01";
+            contact = ["root@mathebau.de"];
+            domains = ["fb04184.mathematik.tu-darmstadt.de" "imap.mathebau.de" "smtp.mathebau.de"];
+            default = true;
+          };
+          spam.header.is-spam = "Dummyheader"; # disable moving to spam which would conflict with forwarding
+          auth = {
+            # TODO check if HRZ conforms to these standards and we can validate them strictly
+            dkim.verify = "relaxed";
+            arc.verify = "relaxed";
+            dmarc.verify = "relaxed";
+            iprev.verify = "relaxed";
+            spf.verify.ehlo = "relaxed";
+            spf.verify.mail-from = "relaxed";
+          };
+
+          # Forward outgoing mail to HRZ or mail VMs.
+          # see https://stalw.art/docs/smtp/outbound/routing/ relay host example
+          queue.outbound = {
+            next-hop = [
+              {
+                "if" = "rcpt_domain = 'lists.mathebau.de'";
+                "then" = "'mailman'";
+              }
+              {
+                "if" = "is_local_domain('', rcpt_domain)";
+                "then" = "'local'";
+              }
+              {"else" = "'hrz'";}
+            ];
+            tls = {
+              # we only talk to HRZ and our own VMs anyway
+              mta-sts = "disable";
+              dane = "disable";
+              starttls = "optional"; # e.g. Lobon does not offer starttls
+            };
+          };
+          remote."hrz" = {
+            address = "mailout.hrz.tu-darmstadt.de";
+            port = 25;
+            protocol = "smtp";
+            tls.implicit = false; # Don't assume TLS on this port but use STARTTLS
+          };
+          remote."mailman" = {
+            address = "lobon.mathebau.de"; # must be created in DNS as a MX record because this field does not accept ip addresses.
+            port = 25;
+            protocol = "smtp";
+            tls.implicit = false; # Don't assume TLS on this port but use STARTTLS
+          };
+
+          session.rcpt = {
+            # In order to accept mail that we only forward
+            # without having to generate an account.
+            # Invalid addresses are filtered by DFN beforehand.
+            catch-all = true;
+            relay = [
+              {
+                "if" = "!is_empty(authenticated_as) || rcpt_domain == 'lists.mathebau.de'";
+                "then" = true;
+              }
+              {"else" = false;}
+            ];
+          };
+
+          # Stalwart gets its configuration from two places: A TOML configuration file that we control in this module
+          # and from a database that can be configured from web management interface or via Rest API.
+          # We here define what comes from the TOML-file and especially add "sieve.trusted.scripts.*" to the default ones
+          # because only TOML-based keys may use macros to load files from disk.
+          # We want this to be able to load our sieve-script for mail forwarding.
+          config.local-keys =
+            [
+              "store.*"
+              "directory.*"
+              "tracer.*"
+              "server.*"
+              "!server.blocked-ip.*"
+              "authentication.fallback-admin.*"
+              "cluster.node-id"
+              "storage.data"
+              "storage.blob"
+              "storage.lookup"
+              "storage.fts"
+              "storage.directory"
+              "lookup.default.hostname"
+              "certificate.*"
+            ] # the default ones
+            ++ ["sieve.trusted.scripts.*"]; #for macros to be able to include our redirection script
+          sieve.trusted.scripts.redirects.contents = "%{file:/tmp/virt_aliases}%"; # generated redirect script
+          session.data.script = "'redirects'";
+
+          authentication.fallback-admin = {
+            user = "admin";
+            # see passwd on azathoth for plaintext or machine secret in encoded format for HTTP Basic AUTH
+            secret = cfg.stalwartAdminHash;
+          };
+        };
+      };
+    };
+    environment.persistence.${config.impermanence.name} = {
+      directories = [
+        "/var/lib/stalwart-mail"
+      ];
+      files = ["/root/.ssh/known_hosts"]; # for the backup server bragi
+    };
+
+    # Update HRZ allowlist
+    # For account details see https://www-cgi.hrz.tu-darmstadt.de/mail/
+    # will stop working if no valid TUIDs are associated to our domain.
+    systemd = {
+      timers."mailAllowlist" = {
+        wantedBy = ["timers.target"];
+        timerConfig = {
+          OnBootSec = "1h"; # Run every hour
+          OnUnitActiveSec = "1h";
+          RandomizedDelaySec = "10m"; # prevent overload on regular intervals
+          Unit = "mailAllowlist.service";
+        };
+      };
+      services = {
+        "mailAllowlist" = {
+          description = "Allowlist update: Post the mail addresses to the HRZ allowllist";
+          script = let
+            scriptTemplate = {
+              domain,
+              allowlistPass,
+              ...
+            }: ''
+              echo "process ${domain}"
+              # This line gets the available mailboxes from stalwart's Rest API, searches for their addresses and collects them to a file for submission.
+              ${pkgs.curl}/bin/curl -s --header "authorization: Basic $(<${cfg.stalwartAdmin})" http://localhost/api/principal | ${pkgs.gnugrep}/bin/grep -o -e "[A-Za-z0-9.!#\$%&'*+-/=?^_{|}~]*@${domain}" | tee /tmp/addresses
+              # This line searches for available redirects and adds them to the submission file.
+              ${pkgs.gnugrep}/bin/grep -o -e "[A-Za-z0-9.!#\$%&'*+-/=?^_{|}~]*@${domain}" /tmp/virt_aliases >> /tmp/addresses # This doesn't catch all RFC conform local parts. Improve if you need.
+              # Post local-parts to HRZ, see https://www-cgi.hrz.tu-darmstadt.de/mail/index.php?bereich=whitelist_upload
+              ${pkgs.curl}/bin/curl -s https://www-cgi.hrz.tu-darmstadt.de/mail/whitelist-update.php -F emaildomain=${domain} -F password=$(cat ${allowlistPass}) -F emailliste=@/tmp/addresses -F meldungen=voll
+              # Cleanup submission file
+              rm /tmp/addresses
+            '';
+          in
+            lib.strings.concatStringsSep "" (map scriptTemplate cfg.domains);
+          serviceConfig = {
+            Type = "oneshot";
+            User = "stalwart-mail";
+            NoNewPrivileges = true;
+            # See https://www.man7.org/linux/man-pages/man5/systemd.exec.5.html
+            PrivateTmp = false; # allow access to sieve script
+            ProtectHome = true;
+            ReadOnlyPaths = "/";
+            ReadWritePaths = "/tmp";
+            InaccessiblePaths = "-/lost+found";
+            PrivateDevices = true;
+            PrivateUsers = true;
+            ProtectHostname = true;
+            ProtectClock = true;
+            ProtectKernelTunables = true;
+            ProtectKernelModules = true;
+            ProtectKernelLogs = true;
+            ProtectControlGroups = true;
+            LockPersonality = true;
+            MemoryDenyWriteExecute = true;
+            RestrictRealtime = true;
+            RestrictSUIDSGID = true;
+          };
+        };
+        "stalwart-mail" = {
+          restartTriggers = lib.attrsets.mapAttrsToList (_: aliaslist: aliaslist.sopsFile) config.sops.secrets; # restart if secrets, especially alias files, have changed.
+          serviceConfig.PrivateTmp = lib.mkForce false; # enable access to generated Sieve script
+        };
+        "virt-aliases-generator" = {
+          description = "Virtual Aliases Generator: Generate a sieve script from the virtual alias file";
+          script = lib.strings.concatStringsSep "" (["${pkgs.alias-to-sieve}/bin/alias_to_sieve "] ++ map (x: "${x.virt_aliases} ${x.domain} ") cfg.domains ++ ["> /tmp/virt_aliases"]);
+          wantedBy = ["stalwart-mail.service"]; # Rerun on stalwart restart because forwardings may have changed.
+          serviceConfig = {
+            Type = "oneshot";
+            User = "stalwart-mail";
+            NoNewPrivileges = true;
+            # See https://www.man7.org/linux/man-pages/man5/systemd.exec.5.html
+            PrivateTmp = false;
+            ProtectHome = true;
+            ReadOnlyPaths = "/";
+            ReadWritePaths = "/tmp";
+            InaccessiblePaths = "-/lost+found";
+            PrivateDevices = true;
+            PrivateUsers = true;
+            ProtectHostname = true;
+            ProtectClock = true;
+            ProtectKernelTunables = true;
+            ProtectKernelModules = true;
+            ProtectKernelLogs = true;
+            ProtectControlGroups = true;
+            LockPersonality = true;
+            MemoryDenyWriteExecute = true;
+            RestrictRealtime = true;
+            RestrictSUIDSGID = true;
+          };
+        };
+      };
+    };
+    # Backups
+    services.borgbackup.jobs.mail = {
+      paths = [
+        "/var/lib/stalwart-mail/data"
+      ];
+      encryption.mode = "none"; # Otherwise the key is next to the backup or we have human interaction.
+      environment = {
+        BORG_RSH = "ssh -i /run/secrets/backupKey";
+        # “Borg ensures that backups are not created on random drives that ‘just happen’ to contain a Borg repository.”
+        # https://borgbackup.readthedocs.io/en/stable/deployment/automated-local.html
+        # We don't want this in order to not need to persist borg cache and simplify new deployments.
+        BORG_UNKNOWN_UNENCRYPTED_REPO_ACCESS_IS_OK = "yes";
+      };
+      repo = "borg@192.168.1.11:kaluut"; # TODO for https://gitea.mathebau.de/Fachschaft/nixConfig/issues/33
+      startAt = "daily";
+      user = "root";
+      group = "root";
+    };
+  };
+}
--- a/nixos/modules/mailman.nix
+++ b/nixos/modules/mailman.nix
@ -35,7 +35,7 @@ in {
          proxy_interfaces = "130.83.2.184";
          smtputf8_enable = "no"; # HRZ does not know SMTPUTF8
        };
-        relayHost = "192.168.0.24"; # Relay to eihort which relays to HRZ (see https://www.hrz.tu-darmstadt.de/services/it_services/email_infrastruktur/index.de.jsp)
+        relayHost = "mathebau.de"; # Relay to mail vm which relays to HRZ (see https://www.hrz.tu-darmstadt.de/services/it_services/email_infrastruktur/index.de.jsp)
      };
      mailman = {
        enable = true;
@ -64,9 +64,9 @@ in {
    systemd.timers."mailAllowlist" = {
      wantedBy = ["timers.target"];
      timerConfig = {
-        OnBootSec = "5m"; # Run every 5 minutes
-        OnUnitActiveSec = "5m";
-        RandomizedDelaySec = "2m"; # prevent overload on regular intervals
+        OnBootSec = "1h"; # Run every hour
+        OnUnitActiveSec = "1h";
+        RandomizedDelaySec = "10m"; # prevent overload on regular intervals
        Unit = "mailAllowlist.service";
      };
    };
Author	SHA1	Message	Date
Gonne	bbea28a6cf	Address first round of review	2024-12-16 20:00:25 +01:00
Gonne	d2ab4d8eea	First try to install Stalwart as a mail software	2024-12-02 20:55:02 +01:00
Gonne	7823d09292	nix flake update	2024-10-26 13:15:27 +02:00