diff --git a/packages/mittwald/spec/openapi.json b/packages/mittwald/spec/openapi.json
index a0875463..85f54019 100644
--- a/packages/mittwald/spec/openapi.json
+++ b/packages/mittwald/spec/openapi.json
@@ -887,6 +887,9 @@
           "externalVersion": {
             "type": "string"
           },
+          "fee": {
+            "$ref": "#/components/schemas/fee.FeeStrategy"
+          },
           "id": {
             "format": "uuid",
             "type": "string"
@@ -2049,11 +2052,16 @@
         "enum": [
           "development",
           "mail",
+          "infra",
+          "marketing",
+          "network",
+          "dataCenter",
           "accounting",
           "customerService",
           "cloudHosting",
           "software",
-          "generic"
+          "generic",
+          "security"
         ],
         "type": "string"
       },
@@ -3019,6 +3027,16 @@
         ],
         "type": "object"
       },
+      "database.DatabaseStatus": {
+        "enum": [
+          "pending",
+          "ready",
+          "migrating",
+          "importing",
+          "error"
+        ],
+        "type": "string"
+      },
       "database.MySqlCharacterSettings": {
         "properties": {
           "collations": {
@@ -3979,12 +3997,16 @@
           },
           "tld": {
             "type": "string"
+          },
+          "transferAuthCodeRequired": {
+            "type": "boolean"
           }
         },
         "required": [
           "tld",
           "rgpDays",
-          "irtp"
+          "irtp",
+          "transferAuthCodeRequired"
         ],
         "type": "object"
       },
@@ -4209,6 +4231,79 @@
         },
         "type": "object"
       },
+      "fee.FeeStrategy": {
+        "description": "A strategy for fees of resources.",
+        "oneOf": [
+          {
+            "$ref": "#/components/schemas/fee.OneTimePaymentFeeStrategy"
+          },
+          {
+            "$ref": "#/components/schemas/fee.PeriodBasedFeeStrategy"
+          }
+        ]
+      },
+      "fee.OneTimePaymentFeeStrategy": {
+        "description": "A strategy for fees that occur once.",
+        "properties": {
+          "price": {
+            "description": "The one-time price in Euro Cents.",
+            "type": "number"
+          }
+        },
+        "required": [
+          "price"
+        ],
+        "type": "object"
+      },
+      "fee.PeriodBasedFeeStrategy": {
+        "description": "A strategy for fees that occur periodically",
+        "properties": {
+          "periods": {
+            "items": {
+              "properties": {
+                "feeValidFrom": {
+                  "format": "date-time",
+                  "type": "string"
+                },
+                "feeValidUntil": {
+                  "format": "date-time",
+                  "type": "string"
+                },
+                "monthlyPrice": {
+                  "description": "The monthly price in Euro Cents.",
+                  "type": "number"
+                }
+              },
+              "required": [
+                "monthlyPrice"
+              ],
+              "type": "object"
+            },
+            "type": "array"
+          }
+        },
+        "required": [
+          "periods"
+        ],
+        "type": "object"
+      },
+      "fee.ResourceFee": {
+        "description": "A Fee of a Resource",
+        "properties": {
+          "feeStrategy": {
+            "$ref": "#/components/schemas/fee.FeeStrategy"
+          },
+          "id": {
+            "description": "The id of the given Resource",
+            "example": "1241a1de-b633-4e6e-9aa5-7e878ccd6864",
+            "type": "string"
+          }
+        },
+        "required": [
+          "id"
+        ],
+        "type": "object"
+      },
       "file.FileMeta": {
         "properties": {
           "friendlyURL": {
@@ -4441,6 +4536,93 @@
         ],
         "type": "object"
       },
+      "ingress.IngressDeprecated": {
+        "properties": {
+          "dnsValidationErrors": {
+            "description": "A list of errors that occurred while validating the ingress's dns before requesting a certificate.",
+            "items": {
+              "enum": [
+                "ERROR_UNSPECIFIED",
+                "ERROR_QUAD_A",
+                "ERROR_NO_A_RECORD",
+                "ERROR_ACME_CERTIFICATE_REQUEST_DEADLINE_EXCEEDED"
+              ],
+              "type": "string"
+            },
+            "type": "array"
+          },
+          "hostname": {
+            "format": "idn-hostname",
+            "type": "string"
+          },
+          "id": {
+            "format": "uuid",
+            "type": "string"
+          },
+          "ips": {
+            "properties": {
+              "v4": {
+                "items": {
+                  "format": "ipv4",
+                  "type": "string"
+                },
+                "type": "array"
+              }
+            },
+            "required": [
+              "v4"
+            ],
+            "type": "object"
+          },
+          "isDefault": {
+            "description": "Whether this ingress is the default ingress or not. A default ingress is automatically created, it cannot be deleted. There can be only one default ingress per project.",
+            "type": "boolean"
+          },
+          "isDomain": {
+            "type": "boolean"
+          },
+          "isEnabled": {
+            "type": "boolean"
+          },
+          "ownership": {
+            "$ref": "#/components/schemas/ingress.Ownership"
+          },
+          "paths": {
+            "description": "A list of paths. The default path `/` is always present and cannot be removed.",
+            "items": {
+              "$ref": "#/components/schemas/ingress.Path"
+            },
+            "type": "array"
+          },
+          "projectId": {
+            "format": "uuid",
+            "type": "string"
+          },
+          "tls": {
+            "oneOf": [
+              {
+                "$ref": "#/components/schemas/ingress.TlsAcmeDeprecated"
+              },
+              {
+                "$ref": "#/components/schemas/ingress.TlsCertificate"
+              }
+            ]
+          }
+        },
+        "required": [
+          "id",
+          "hostname",
+          "projectId",
+          "isDefault",
+          "tls",
+          "paths",
+          "isEnabled",
+          "ips",
+          "dnsValidationErrors",
+          "ownership"
+        ],
+        "type": "object"
+      },
       "ingress.Ownership": {
         "properties": {
           "txtRecord": {
@@ -4560,22 +4742,40 @@
         "type": "object"
       },
       "ingress.TlsAcme": {
+        "additionalProperties": false,
         "properties": {
           "acme": {
             "description": "Has to be `true`, as ssl cannot be deactivated.",
             "type": "boolean"
           },
+          "isCreated": {
+            "type": "boolean"
+          },
           "requestDeadline": {
             "format": "date-time",
             "type": "string"
           }
         },
+        "required": [
+          "acme",
+          "isCreated"
+        ],
+        "type": "object"
+      },
+      "ingress.TlsAcmeDeprecated": {
+        "additionalProperties": false,
+        "properties": {
+          "acme": {
+            "type": "boolean"
+          }
+        },
         "required": [
           "acme"
         ],
         "type": "object"
       },
       "ingress.TlsCertificate": {
+        "additionalProperties": false,
         "properties": {
           "certificateId": {
             "format": "uuid",
@@ -5208,52 +5408,6 @@
         ],
         "type": "object"
       },
-      "mail.DeliveryboxInternal": {
-        "properties": {
-          "authenticationEnabled": {
-            "type": "boolean"
-          },
-          "description": {
-            "type": "string"
-          },
-          "id": {
-            "format": "uuid",
-            "type": "string"
-          },
-          "mailsystemSettings": {
-            "$ref": "#/components/schemas/mail.MailsystemSettings"
-          },
-          "name": {
-            "type": "string"
-          },
-          "passwordUpdatedAt": {
-            "format": "date-time",
-            "type": "string"
-          },
-          "projectId": {
-            "type": "string"
-          },
-          "sendingEnabled": {
-            "type": "boolean"
-          },
-          "updatedAt": {
-            "format": "date-time",
-            "type": "string"
-          }
-        },
-        "required": [
-          "id",
-          "name",
-          "projectId",
-          "description",
-          "authenticationEnabled",
-          "sendingEnabled",
-          "passwordUpdatedAt",
-          "updatedAt",
-          "mailsystemSettings"
-        ],
-        "type": "object"
-      },
       "mail.Error": {
         "properties": {
           "message": {
@@ -5436,157 +5590,6 @@
         ],
         "type": "object"
       },
-      "mail.MailAddressInternal": {
-        "properties": {
-          "address": {
-            "format": "idn-email",
-            "type": "string"
-          },
-          "autoResponder": {
-            "properties": {
-              "active": {
-                "type": "boolean"
-              },
-              "expiresAt": {
-                "format": "date-time",
-                "type": "string"
-              },
-              "message": {
-                "type": "string"
-              },
-              "startsAt": {
-                "format": "date-time",
-                "type": "string"
-              }
-            },
-            "required": [
-              "active"
-            ],
-            "type": "object"
-          },
-          "forwardAddresses": {
-            "items": {
-              "format": "idn-email",
-              "type": "string"
-            },
-            "type": "array"
-          },
-          "id": {
-            "format": "uuid",
-            "type": "string"
-          },
-          "isArchived": {
-            "type": "boolean"
-          },
-          "isCatchAll": {
-            "type": "boolean"
-          },
-          "mailbox": {
-            "properties": {
-              "mailsystemSettings": {
-                "$ref": "#/components/schemas/mail.MailsystemSettings"
-              },
-              "name": {
-                "type": "string"
-              },
-              "passwordUpdatedAt": {
-                "format": "date-time",
-                "type": "string"
-              },
-              "sendingEnabled": {
-                "type": "boolean"
-              },
-              "spamProtection": {
-                "properties": {
-                  "active": {
-                    "type": "boolean"
-                  },
-                  "autoDeleteSpam": {
-                    "type": "boolean"
-                  },
-                  "folder": {
-                    "enum": [
-                      "spam",
-                      "inbox"
-                    ],
-                    "type": "string"
-                  },
-                  "relocationMinSpamScore": {
-                    "maximum": 10,
-                    "type": "integer"
-                  }
-                },
-                "required": [
-                  "active",
-                  "folder",
-                  "relocationMinSpamScore",
-                  "autoDeleteSpam"
-                ],
-                "type": "object"
-              },
-              "storageInBytes": {
-                "properties": {
-                  "current": {
-                    "properties": {
-                      "updatedAt": {
-                        "format": "date-time",
-                        "type": "string"
-                      },
-                      "value": {
-                        "type": "number"
-                      }
-                    },
-                    "required": [
-                      "value",
-                      "updatedAt"
-                    ],
-                    "type": "object"
-                  },
-                  "limit": {
-                    "type": "number"
-                  }
-                },
-                "required": [
-                  "limit",
-                  "current"
-                ],
-                "type": "object"
-              }
-            },
-            "required": [
-              "name",
-              "sendingEnabled",
-              "spamProtection",
-              "storageInBytes",
-              "passwordUpdatedAt",
-              "mailsystemSettings"
-            ],
-            "type": "object"
-          },
-          "projectId": {
-            "type": "string"
-          },
-          "receivingDisabled": {
-            "type": "boolean"
-          },
-          "updatedAt": {
-            "format": "date-time",
-            "type": "string"
-          }
-        },
-        "required": [
-          "id",
-          "receivingDisabled",
-          "address",
-          "isCatchAll",
-          "projectId",
-          "forwardAddresses",
-          "updatedAt",
-          "autoResponder",
-          "isArchived"
-        ],
-        "type": "object"
-      },
       "mail.MailsystemSettings": {
         "properties": {
           "imapClusterId": {
@@ -5725,6 +5728,27 @@
         },
         "type": "object"
       },
+      "mailmigration.MigrationFinalizeJobDisableLegacyEntities": {
+        "properties": {
+          "addresses": {
+            "items": {
+              "type": "string"
+            },
+            "type": "array"
+          },
+          "mailboxNames": {
+            "items": {
+              "type": "string"
+            },
+            "type": "array"
+          }
+        },
+        "required": [
+          "mailboxNames",
+          "addresses"
+        ],
+        "type": "object"
+      },
       "mailmigration.MigrationFinalizeJobProjectSetting": {
         "properties": {
           "blacklistEntries": {
@@ -6593,7 +6617,6 @@
         "required": [
           "orderId",
           "orderNumber",
-          "orderDate",
           "summary",
           "customerId",
           "invoicingPeriod",
@@ -8139,50 +8162,6 @@
         ],
         "type": "object"
       },
-      "mailmigration.MigrationFinalizeJobDisableLegacyEntities": {
-        "properties": {
-          "addresses": {
-            "items": {
-              "type": "string"
-            },
-            "type": "array"
-          },
-          "mailboxNames": {
-            "items": {
-              "type": "string"
-            },
-            "type": "array"
-          }
-        },
-        "required": [
-          "mailboxNames",
-          "addresses"
-        ],
-        "type": "object"
-      },
-      "database.DatabaseStatus": {
-        "enum": [
-          "pending",
-          "ready",
-          "migrating",
-          "importing",
-          "error"
-        ],
-        "type": "string"
-      },
-      "fee.OneTimePaymentFeeStrategy": {
-        "description": "A strategy for fees that occur once.",
-        "properties": {
-          "price": {
-            "description": "The one-time price in Euro Cents.",
-            "type": "number"
-          }
-        },
-        "required": [
-          "price"
-        ],
-        "type": "object"
-      },
       "commons.Address": {
         "type": "object",
         "properties": {
@@ -19873,8 +19852,7 @@
                   }
                 },
                 "required": [
-                  "domain",
-                  "authCode"
+                  "domain"
                 ]
               }
             }
@@ -19978,6 +19956,9 @@
           "404": {
             "$ref": "#/components/responses/commons.NotFoundError"
           },
+          "412": {
+            "$ref": "#/components/responses/commons.DefaultError"
+          },
           "default": {
             "$ref": "#/components/responses/commons.DefaultError"
           }
diff --git a/packages/mittwald/src/generated/v2/descriptors.ts b/packages/mittwald/src/generated/v2/descriptors.ts
index 73076821..169b2640 100644
--- a/packages/mittwald/src/generated/v2/descriptors.ts
+++ b/packages/mittwald/src/generated/v2/descriptors.ts
@@ -4290,6 +4290,11 @@ export const domainCreateDomainAuthCode: OpenAPIOperation<
       404,
       "application/json"
     >
+  | Response<
+      Simplify<MittwaldAPIV2.Paths.V2DomainsDomainIdActionsAuthCode.Post.Responses.$412.Content.ApplicationJson>,
+      412,
+      "application/json"
+    >
   | Response<
       Simplify<MittwaldAPIV2.Paths.V2DomainsDomainIdActionsAuthCode.Post.Responses.Default.Content.ApplicationJson>,
       "default",
diff --git a/packages/mittwald/src/generated/v2/types.ts b/packages/mittwald/src/generated/v2/types.ts
index 4eb31101..d0295ddf 100644
--- a/packages/mittwald/src/generated/v2/types.ts
+++ b/packages/mittwald/src/generated/v2/types.ts
@@ -3302,6 +3302,7 @@ export declare module MittwaldAPIV2 {
       export interface AppSystemSoftwareVersion {
         expiryDate?: string;
         externalVersion: string;
+        fee?: MittwaldAPIV2.Components.Schemas.FeeFeeStrategy;
         id: string;
         internalVersion: string;
         recommended?: boolean;
@@ -3682,11 +3683,16 @@ export declare module MittwaldAPIV2 {
       export type ConversationDepartment =
         | "development"
         | "mail"
+        | "infra"
+        | "marketing"
+        | "network"
+        | "dataCenter"
         | "accounting"
         | "customerService"
         | "cloudHosting"
         | "software"
-        | "generic";
+        | "generic"
+        | "security";
 
       export interface ConversationError {
         message: string;
@@ -3986,6 +3992,13 @@ export declare module MittwaldAPIV2 {
         password: string;
       }
 
+      export type DatabaseDatabaseStatus =
+        | "pending"
+        | "ready"
+        | "migrating"
+        | "importing"
+        | "error";
+
       export interface DatabaseMySqlCharacterSettings {
         collations: string[];
         name: string;
@@ -4293,6 +4306,7 @@ export declare module MittwaldAPIV2 {
         irtp: boolean;
         rgpDays: number;
         tld: string;
+        transferAuthCodeRequired: boolean;
       }
 
       export interface MarketplaceContributor {
@@ -4363,6 +4377,48 @@ export declare module MittwaldAPIV2 {
         phone?: string;
       }
 
+      /**
+       * A strategy for fees of resources.
+       */
+      export type FeeFeeStrategy =
+        | MittwaldAPIV2.Components.Schemas.FeeOneTimePaymentFeeStrategy
+        | MittwaldAPIV2.Components.Schemas.FeePeriodBasedFeeStrategy;
+
+      /**
+       * A strategy for fees that occur once.
+       */
+      export interface FeeOneTimePaymentFeeStrategy {
+        /**
+         * The one-time price in Euro Cents.
+         */
+        price: number;
+      }
+
+      /**
+       * A strategy for fees that occur periodically
+       */
+      export interface FeePeriodBasedFeeStrategy {
+        periods: {
+          feeValidFrom?: string;
+          feeValidUntil?: string;
+          /**
+           * The monthly price in Euro Cents.
+           */
+          monthlyPrice: number;
+        }[];
+      }
+
+      /**
+       * A Fee of a Resource
+       */
+      export interface FeeResourceFee {
+        feeStrategy?: MittwaldAPIV2.Components.Schemas.FeeFeeStrategy;
+        /**
+         * The id of the given Resource
+         */
+        id: string;
+      }
+
       export interface FileFileMeta {
         friendlyURL: string;
         id: string;
@@ -4437,6 +4493,38 @@ export declare module MittwaldAPIV2 {
           | MittwaldAPIV2.Components.Schemas.IngressTlsCertificate;
       }
 
+      export interface IngressIngressDeprecated {
+        /**
+         * A list of errors that occurred while validating the ingress's dns before requesting a certificate.
+         */
+        dnsValidationErrors: (
+          | "ERROR_UNSPECIFIED"
+          | "ERROR_QUAD_A"
+          | "ERROR_NO_A_RECORD"
+          | "ERROR_ACME_CERTIFICATE_REQUEST_DEADLINE_EXCEEDED"
+        )[];
+        hostname: string;
+        id: string;
+        ips: {
+          v4: string[];
+        };
+        /**
+         * Whether this ingress is the default ingress or not. A default ingress is automatically created, it cannot be deleted. There can be only one default ingress per project.
+         */
+        isDefault: boolean;
+        isDomain?: boolean;
+        isEnabled: boolean;
+        ownership: MittwaldAPIV2.Components.Schemas.IngressOwnership;
+        /**
+         * A list of paths. The default path `/` is always present and cannot be removed.
+         */
+        paths: MittwaldAPIV2.Components.Schemas.IngressPath[];
+        projectId: string;
+        tls:
+          | MittwaldAPIV2.Components.Schemas.IngressTlsAcmeDeprecated
+          | MittwaldAPIV2.Components.Schemas.IngressTlsCertificate;
+      }
+
       export interface IngressOwnership {
         txtRecord?: string;
         /**
@@ -4486,9 +4574,14 @@ export declare module MittwaldAPIV2 {
          * Has to be `true`, as ssl cannot be deactivated.
          */
         acme: boolean;
+        isCreated: boolean;
         requestDeadline?: string;
       }
 
+      export interface IngressTlsAcmeDeprecated {
+        acme: boolean;
+      }
+
       export interface IngressTlsCertificate {
         certificateId: string;
       }
@@ -4663,18 +4756,6 @@ export declare module MittwaldAPIV2 {
         updatedAt: string;
       }
 
-      export interface MailDeliveryboxInternal {
-        authenticationEnabled: boolean;
-        description: string;
-        id: string;
-        mailsystemSettings: MittwaldAPIV2.Components.Schemas.MailMailsystemSettings;
-        name: string;
-        passwordUpdatedAt: string;
-        projectId: string;
-        sendingEnabled: boolean;
-        updatedAt: string;
-      }
-
       export interface MailError {
         message: string;
         type: string;
@@ -4720,42 +4801,6 @@ export declare module MittwaldAPIV2 {
         updatedAt: string;
       }
 
-      export interface MailMailAddressInternal {
-        address: string;
-        autoResponder: {
-          active: boolean;
-          expiresAt?: string;
-          message?: string;
-          startsAt?: string;
-        };
-        forwardAddresses: string[];
-        id: string;
-        isArchived: boolean;
-        isCatchAll: boolean;
-        mailbox?: {
-          mailsystemSettings: MittwaldAPIV2.Components.Schemas.MailMailsystemSettings;
-          name: string;
-          passwordUpdatedAt: string;
-          sendingEnabled: boolean;
-          spamProtection: {
-            active: boolean;
-            autoDeleteSpam: boolean;
-            folder: "spam" | "inbox";
-            relocationMinSpamScore: number;
-          };
-          storageInBytes: {
-            current: {
-              updatedAt: string;
-              value: number;
-            };
-            limit: number;
-          };
-        };
-        projectId: string;
-        receivingDisabled: boolean;
-        updatedAt: string;
-      }
-
       export interface MailMailsystemSettings {
         imapClusterId: string;
         mailDirectory: string;
@@ -4802,6 +4847,11 @@ export declare module MittwaldAPIV2 {
         projectSettingMigrations?: MittwaldAPIV2.Components.Schemas.MailmigrationMigrationFinalizeJobProjectSetting;
       }
 
+      export interface MailmigrationMigrationFinalizeJobDisableLegacyEntities {
+        addresses: string[];
+        mailboxNames: string[];
+      }
+
       export interface MailmigrationMigrationFinalizeJobProjectSetting {
         blacklistEntries: string[];
         whitelistEntries: string[];
@@ -5143,7 +5193,7 @@ export declare module MittwaldAPIV2 {
          */
         invoicingPeriod: number;
         items: MittwaldAPIV2.Components.Schemas.OrderOrderItem[];
-        orderDate: string;
+        orderDate?: string;
         orderId: string;
         orderNumber: string;
         profile?: MittwaldAPIV2.Components.Schemas.OrderProfile;
@@ -5663,28 +5713,6 @@ export declare module MittwaldAPIV2 {
         tokenId: string;
       }
 
-      export interface MailmigrationMigrationFinalizeJobDisableLegacyEntities {
-        addresses: string[];
-        mailboxNames: string[];
-      }
-
-      export type DatabaseDatabaseStatus =
-        | "pending"
-        | "ready"
-        | "migrating"
-        | "importing"
-        | "error";
-
-      /**
-       * A strategy for fees that occur once.
-       */
-      export interface FeeOneTimePaymentFeeStrategy {
-        /**
-         * The one-time price in Euro Cents.
-         */
-        price: number;
-      }
-
       export interface CommonsAddress {
         street: string;
         houseNumber: string;
@@ -12115,7 +12143,7 @@ export declare module MittwaldAPIV2 {
           export type Path = {};
 
           export interface RequestBody {
-            authCode: string;
+            authCode?: string;
             domain: string;
           }
 
@@ -12198,6 +12226,14 @@ export declare module MittwaldAPIV2 {
             }
           }
 
+          namespace $412 {
+            namespace Content {
+              export interface ApplicationJson {
+                [k: string]: unknown;
+              }
+            }
+          }
+
           namespace Default {
             namespace Content {
               export interface ApplicationJson {