feat(services): [bmi/opendesk/deployment/opendesk#66] Add dkimpy-milter to sign outgoing emails with DKIM and use local postfix as mail relay in all components.

helmfile/apps/element/values-synapse.yaml.gotmpl

@@ -50,15 +50,17 @@ configuration:
         url: null
         sender_localpart: ox-appsuite
 
-    presence: 
+    presence:
       enabled: {{ .Values.functional.dataProtection.matrixPresence.enabled }}
-    
+
     smtp:
       senderAddress: "{{ .Values.smtp.localpartNoReply }}@{{ if .Values.functional.email.systemGenerated.useComponentInSenderdomain }}{{ .Values.global.hosts.element }}.{{ end }}{{ .Values.global.domain }}"
-      host: {{ .Values.smtp.host | quote }}
-      port: {{ .Values.smtp.port }}
-      username: {{ .Values.smtp.username | quote }}
-      password: {{ .Values.smtp.password | quote }}
+      host: {{ printf "%s.%s.svc.%s" "postfix" (.Values.postfix.namespace | default .Release.Namespace) .Values.cluster.networking.domain | quote }}
+      port: 25
+      tls: false
+      starttls: false
+      username: ""
+      password: ""
 
     oidc:
       clientId: "opendesk-matrix"

helmfile/apps/nextcloud/values-nextcloud-mgmt.yaml.gotmpl

@@ -75,14 +75,17 @@ configuration:
       value: {{ .Values.secrets.centralnavigation.apiKey | quote }}
   smtp:
     auth:
+      enabled: false
       username:
-        value: {{ .Values.smtp.username | quote }}
+        value: ""
       password:
-        value: {{ .Values.smtp.password | quote }}
-    host: {{ .Values.smtp.host | quote }}
-    port: {{ .Values.smtp.port | quote }}
+        value: ""
+    host: {{ printf "%s.%s.svc.%s" "postfix" (.Values.postfix.namespace | default .Release.Namespace) .Values.cluster.networking.domain | quote }}
+    port: 25
     fromAddress: {{ .Values.smtp.localpartNoReply | quote }}
     mailDomain: "{{ if .Values.functional.email.systemGenerated.useComponentInSenderdomain }}{{ .Values.global.hosts.nextcloud }}.{{ end }}{{ .Values.global.domain }}"
+    security: ""
+    skipVerifyPeer: true
   quota:
     default: "{{ .Values.functional.filestore.quota.default }} GB"
     retentionObligation:

helmfile/apps/nubus/values-nubus.yaml.gotmpl

@@ -83,7 +83,7 @@ keycloak:
 
 nubusGuardian:
   provisioning:
-    enabled: true
+    enabled: false
     config:
       keycloak:
         credentialSecret:
@@ -152,10 +152,13 @@ nubusKeycloakExtensions:
         key: "umcKeycloakExtensionsDatabasePassword"
   smtp:
     connection:
-      host: {{ .Values.smtp.host | quote }}
-      port: {{ .Values.smtp.port | quote }}
+      host: {{ printf "%s.%s.svc.%s" "postfix" (.Values.postfix.namespace | default .Release.Namespace) .Values.cluster.networking.domain | quote }}
+      port: 25
+      ssl: false
+      starttls: false
     auth:
-      username: {{ .Values.smtp.username | quote }}
+      enabled: false
+      username: ""
       credentialSecret:
         name: "ums-keycloak-extensions-smtp-opendesk-credentials"
         key: "umcKeycloakExtensionsSmtpPassword"
@@ -213,6 +216,12 @@ nubusStackDataUms:
 
 # TODO: Remove values when upstreaming fixes
 nubusStackDataSwp:
+  stackDataSwp:
+    {{- if .Values.functional.admin.portal.deploymentInformation.enabled }}
+    systemInformation:
+      deployDate: "Deployed: {{ now | date "2006-01-02T15:04:05-0700" }}"
+      releaseVersion: "Release: {{ .Values.global.systemInformation.releaseVersion }}"
+    {{- end }}
   stackDataContext:
     ldapSearchUsers:
       {{- range $username, $password := .Values.secrets.nubus.ldapSearch }}
@@ -221,9 +230,10 @@ nubusStackDataSwp:
         lastname: "LDAP-Search-User"
       {{- end }}
     externalMailDomain: {{ .Values.global.mailDomain | default .Values.global.domain }}
-    smtpHost: {{ .Values.smtp.host | quote }}
-    smtpPort: {{ .Values.smtp.port | quote }}
-    smtpUser: {{ .Values.smtp.username | quote }}
+    smtpHost: {{ printf "%s.%s.svc.%s" "postfix" (.Values.postfix.namespace | default .Release.Namespace) .Values.cluster.networking.domain | quote }}
+    smtpPort: 25
+    smtpUser: ""
+    smtpStartTls: false
     ldapBase: {{ .Values.ldap.baseDn }}
     # FIXME: Should be templated correctly in the future
     portalRealtimeCollaborationLinkBase: {{ printf "https://%s.%s" .Values.global.hosts.element .Values.global.domain }}
@@ -309,7 +319,7 @@ extraSecrets:
       umcKeycloakExtensionsDatabasePassword: {{ .Values.databases.keycloakExtension.password | default .Values.secrets.postgresql.keycloakExtensionUser | quote }}
   - name: "ums-keycloak-extensions-smtp-opendesk-credentials"
     stringData:
-      umcKeycloakExtensionsSmtpPassword: {{ .Values.smtp.password | quote }}
+      umcKeycloakExtensionsSmtpPassword: ""
   - name: "ums-portal-server-minio-opendesk-credentials"
     stringData:
       access-key-id: {{ .Values.objectstores.nubus.username | quote }}
@@ -320,4 +330,4 @@ extraSecrets:
       secret-key-id: {{ .Values.objectstores.nubus.secretKey | default .Values.secrets.minio.umsUser | quote }}
   - name: "ums-umc-server-smtp-credentials-custom"
     stringData:
-      password: {{ .Values.smtp.password | quote }}
+      password: ""

helmfile/apps/nubus/values-opendesk-keycloak-bootstrap.yaml.gotmpl

@@ -28,7 +28,8 @@ config:
       {{ .Values.functional.authentication.oidc.clients | toYaml | nindent 6 }}
   managed:
     clientScopes: [ 'acr', 'web-origins', 'email', 'profile', 'microprofile-jwt', 'role_list', 'offline_access', 'roles', 'address', 'phone' ]
-    clients: [ 'UMC', 'guardian-management-api', 'guardian-scripts', 'guardian-ui', '${client_account}', '${client_account-console}', '${client_admin-cli}', '${client_broker}', '${client_realm-management}', '${client_security-admin-console}' ]
+    # 'guardian-management-api', 'guardian-scripts', 'guardian-ui' clients have been added explicitly for the moment (see further down this file)
+    clients: [ 'UMC', '${client_account}', '${client_account-console}', '${client_admin-cli}', '${client_broker}', '${client_realm-management}', '${client_security-admin-console}' ]
   keycloak:
     adminUser: "kcadmin"
     adminPassword: {{ .Values.secrets.keycloak.adminPassword | quote }}
@@ -570,6 +571,296 @@ config:
           post.logout.redirect.uris: "https://{{ .Values.global.hosts.xwiki }}.{{ .Values.global.domain }}/*##https://{{ .Values.global.hosts.nubus }}.{{ .Values.global.domain }}/*"
         defaultClientScopes:
           - "opendesk-xwiki-scope"
+      - name: "guardian-management-api"
+        clientId: "guardian-management-api"
+        rootUrl: "https://{{ .Values.global.hosts.nubus }}.{{ .Values.global.domain }}"
+        baseUrl: "https://{{ .Values.global.hosts.nubus }}.{{ .Values.global.domain }}"
+        protocol: "openid-connect"
+        publicClient: false
+        clientAuthenticatorType: "client-secret"
+        secret: {{ .Values.secrets.keycloak.clientSecret.guardian | quote }}
+        redirectUris:
+          - "https://{{ .Values.global.hosts.nubus }}.{{ .Values.global.domain }}/guardian/*"
+        fullScopeAllowed: true
+        standardFlowEnabled: true
+        implicitFlowEnabled: false
+        directAccessGrantsEnabled: false
+        serviceAccountsEnabled: true
+        protocolMappers:
+          - name: "Client Host"
+            protocol: "openid-connect"
+            protocolMapper: "oidc-usersessionmodel-note-mapper"
+            consentRequired: false
+            config:
+              user.session.note: "clientHost"
+              userinfo.token.claim: true
+              id.token.claim: true
+              access.token.claim: true
+              claim.name: "clientHost"
+              jsonType.label: "String"
+          - name: "Client ID"
+            protocol: "openid-connect"
+            protocolMapper: "oidc-usersessionmodel-note-mapper"
+            consentRequired: false
+            config:
+              user.session.note: "client_id"
+              userinfo.token.claim: true
+              id.token.claim: true
+              access.token.claim: true
+              claim.name: "client_id"
+              jsonType.label: "String"
+          - name: "guardian-audience"
+            protocol: "openid-connect"
+            protocolMapper: "oidc-audience-mapper"
+            consentRequired: false
+            config:
+              included.client.audience: "guardian"
+              userinfo.token.claim: false
+              id.token.claim: false
+              access.token.claim: true
+          - name: "audiencemap"
+            protocol: "openid-connect"
+            protocolMapper: "oidc-audience-mapper"
+            consentRequired: false
+            config:
+              included.client.audience: "guardian-cli"
+              userinfo.token.claim: true
+              id.token.claim: true
+              access.token.claim: true
+          - name: "dn"
+            protocol: "openid-connect"
+            protocolMapper: "oidc-usermodel-attribute-mapper"
+            consentRequired: false
+            config:
+              userinfo.token.claim: false
+              user.attribute: "LDAP_ENTRY_DN"
+              id.token.claim: false
+              access.token.claim: true
+              claim.name: "dn"
+              jsonType.label: "String"
+          - name: "username"
+            protocol: "openid-connect"
+            protocolMapper: "oidc-usermodel-property-mapper"
+            consentRequired: false
+            config:
+              userinfo.token.claim: true
+              user.attribute: "username"
+              id.token.claim: true
+              access.token.claim: true
+              claim.name: "preferred_username"
+              jsonType.label: "String"
+          - name: "uid"
+            protocol: "openid-connect"
+            protocolMapper: "oidc-usermodel-attribute-mapper"
+            consentRequired: false
+            config:
+              userinfo.token.claim: true
+              user.attribute: "uid"
+              id.token.claim: true
+              access.token.claim: true
+              claim.name: "uid"
+              jsonType.label: "String"
+          - name: "email"
+            protocol: "openid-connect"
+            protocolMapper: "oidc-usermodel-property-mapper"
+            consentRequired: false
+            config:
+              userinfo.token.claim: true
+              user.attribute: "email"
+              id.token.claim: true
+              access.token.claim: true
+              claim.name: "email"
+              jsonType.label: "String"
+          - name: "Client IP Address"
+            protocol: "openid-connect"
+            protocolMapper: "oidc-usersessionmodel-note-mapper"
+            consentRequired: false
+            config:
+              user.session.note: "clientAddress"
+              userinfo.token.claim: true
+              id.token.claim: true
+              access.token.claim: true
+              claim.name: "clientAddress"
+              jsonType.label: "String"
+      - name: "guardian-scripts"
+        clientId: "guardian-scripts"
+        description: ""
+        rootUrl: "https://{{ .Values.global.hosts.nubus }}.{{ .Values.global.domain }}"
+        adminUrl: "https://{{ .Values.global.hosts.nubus }}.{{ .Values.global.domain }}"
+        baseUrl: "https://{{ .Values.global.hosts.nubus }}.{{ .Values.global.domain }}"
+        surrogateAuthRequired: false
+        enabled: true
+        alwaysDisplayInConsole: false
+        clientAuthenticatorType: "client-secret"
+        redirectUris:
+          - "https://{{ .Values.global.hosts.nubus }}.{{ .Values.global.domain }}/univention/guardian/*"
+          - "https://{{ .Values.global.hosts.nubus }}.{{ .Values.global.domain }}"
+          - "https://{{ .Values.global.hosts.nubus }}.{{ .Values.global.domain }}/guardian/*"
+        webOrigins:
+          - "https://{{ .Values.global.hosts.nubus }}.{{ .Values.global.domain }}"
+        bearerOnly: false
+        consentRequired: false
+        standardFlowEnabled: true
+        implicitFlowEnabled: false
+        directAccessGrantsEnabled: true
+        serviceAccountsEnabled: false
+        publicClient: true
+        frontchannelLogout: false
+        protocol: "openid-connect"
+        fullScopeAllowed: true
+        protocolMappers:
+          - name: "email"
+            protocol: "openid-connect"
+            protocolMapper: "oidc-usermodel-property-mapper"
+            consentRequired: false
+            config:
+              userinfo.token.claim: true
+              user.attribute: "email"
+              id.token.claim: true
+              access.token.claim: true
+              claim.name: "email"
+              jsonType.label: "String"
+          - name: "guardian-audience"
+            protocol: "openid-connect"
+            protocolMapper: "oidc-audience-mapper"
+            consentRequired: false
+            config:
+              included.client.audience: "guardian"
+              id.token.claim: false
+              access.token.claim: true
+              userinfo.token.claim: false
+          - name: "username"
+            protocol: "openid-connect"
+            protocolMapper: "oidc-usermodel-property-mapper"
+            consentRequired: false
+            config:
+              userinfo.token.claim: true
+              user.attribute: "username"
+              id.token.claim: true
+              access.token.claim: true
+              claim.name: "preferred_username"
+              jsonType.label: "String"
+          - name: "uid"
+            protocol: "openid-connect"
+            protocolMapper: "oidc-usermodel-attribute-mapper"
+            consentRequired: false
+            config:
+              userinfo.token.claim: true
+              user.attribute: "uid"
+              id.token.claim: true
+              access.token.claim: true
+              claim.name: "uid"
+              jsonType.label: "String"
+          - name: "audiencemap"
+            protocol: "openid-connect"
+            protocolMapper: "oidc-audience-mapper"
+            consentRequired: false
+            config:
+              included.client.audience: "guardian-scripts"
+              id.token.claim: true
+              access.token.claim: true
+              userinfo.token.claim: true
+          - name: "dn"
+            protocol: "openid-connect"
+            protocolMapper: "oidc-usermodel-attribute-mapper"
+            consentRequired: false
+            config:
+              aggregate.attrs: false
+              multivalued: false
+              userinfo.token.claim: false
+              user.attribute: "LDAP_ENTRY_DN"
+              id.token.claim: false
+              access.token.claim: true
+              claim.name: "dn"
+              jsonType.label: "String"
+        defaultClientScopes:
+          - "web-origins"
+          - "acr"
+          - "roles"
+          - "profile"
+          - "email"
+        optionalClientScopes:
+          - "address"
+          - "phone"
+          - "offline_access"
+          - "microprofile-jwt"
+      - name: "guardian-ui"
+        clientId: "guardian-ui"
+        rootUrl: "https://{{ .Values.global.hosts.nubus }}.{{ .Values.global.domain }}"
+        baseUrl: "https://{{ .Values.global.hosts.nubus }}.{{ .Values.global.domain }}"
+        clientAuthenticatorType: "client-secret"
+        redirectUris:
+          - "https://{{ .Values.global.hosts.nubus }}.{{ .Values.global.domain }}/univention/guardian/*"
+        standardFlowEnabled: true
+        publicClient: true
+        implicitFlowEnabled: false
+        directAccessGrantsEnabled: false
+        serviceAccountsEnabled: false
+        protocol: "openid-connect"
+        fullScopeAllowed: true
+        protocolMappers:
+          - name: "uid"
+            protocol: "openid-connect"
+            protocolMapper: "oidc-usermodel-attribute-mapper"
+            consentRequired: false
+            config:
+              userinfo.token.claim: true
+              user.attribute: "uid"
+              id.token.claim: true
+              access.token.claim: true
+              claim.name: "uid"
+              jsonType.label: "String"
+          - name: "username"
+            protocol: "openid-connect"
+            protocolMapper: "oidc-usermodel-property-mapper"
+            consentRequired: false
+            config:
+              userinfo.token.claim: true
+              user.attribute: "username"
+              id.token.claim: true
+              access.token.claim: true
+              claim.name: "preferred_username"
+              jsonType.label: "String"
+          - name: "dn"
+            protocol: "openid-connect"
+            protocolMapper: "oidc-usermodel-attribute-mapper"
+            consentRequired: false
+            config:
+              userinfo.token.claim: "false"
+              user.attribute: "LDAP_ENTRY_DN"
+              id.token.claim: false
+              access.token.claim: true
+              claim.name: "dn"
+              jsonType.label: "String"
+          - name: "audiencemap"
+            protocol: "openid-connect"
+            protocolMapper: "oidc-audience-mapper"
+            consentRequired: false
+            config:
+              included.client.audience: "guardian"
+              id.token.claim: true
+              access.token.claim: true
+              userinfo.token.claim: true
+          - name: "email"
+            protocol: "openid-connect"
+            protocolMapper: "oidc-usermodel-property-mapper"
+            consentRequired: false
+            config:
+              userinfo.token.claim: true
+              user.attribute: "email"
+              id.token.claim: true
+              access.token.claim: true
+              claim.name: "email"
+              jsonType.label: "String"
+          - name: "guardian-audience"
+            protocol: "openid-connect"
+            protocolMapper: "oidc-audience-mapper"
+            consentRequired: false
+            config:
+              included.client.audience: "guardian"
+              id.token.claim: false
+              access.token.claim: true
+              userinfo.token.claim: false
 
 containerSecurityContext:
   allowPrivilegeEscalation: false

helmfile/apps/open-xchange/values-dovecot.yaml.gotmpl

@@ -36,7 +36,7 @@ dovecot:
   submission:
     enabled: true
     ssl: "no"
-    host: "postfix:25"
+    host: "{{ printf "%s.%s.svc.%s" "postfix" (.Values.postfix.namespace | default .Release.Namespace) .Values.cluster.networking.domain }}:25"
 
 certificate:
   secretName: {{ .Values.ingress.tls.secretName | quote }}

helmfile/apps/openproject/values.yaml.gotmpl

@@ -59,14 +59,14 @@ environment:
   OPENPROJECT_SOUVAP__NAVIGATION__SECRET: {{ .Values.secrets.centralnavigation.apiKey | quote }}
   OPENPROJECT_SOUVAP__NAVIGATION__URL: "https://{{ .Values.global.hosts.nubus }}.{{ .Values.global.domain }}/univention/portal/navigation.json?base=https%3A//{{ .Values.global.hosts.nubus }}.{{ .Values.global.domain }}"
   OPENPROJECT_SMTP__DOMAIN: {{ .Values.global.mailDomain | default .Values.global.domain | quote }}
-  OPENPROJECT_SMTP__USER__NAME: {{ .Values.smtp.username | quote }}
-  OPENPROJECT_SMTP__PASSWORD: {{ .Values.smtp.password | quote }}
-  OPENPROJECT_SMTP__PORT: {{ .Values.smtp.port | quote }}
+  OPENPROJECT_SMTP__USER__NAME: ""
+  OPENPROJECT_SMTP__PASSWORD: ""
+  OPENPROJECT_SMTP__PORT: 25
   OPENPROJECT_SMTP__SSL: "false" # (default=false)
-  OPENPROJECT_SMTP__ADDRESS: {{ .Values.smtp.host | quote }}
-  OPENPROJECT_SMTP__AUTHENTICATION: "plain"
-  OPENPROJECT_SMTP__ENABLE__STARTTLS__AUTO: "true"
-  OPENPROJECT_SMTP__OPENSSL__VERIFY__MODE: "peer"
+  OPENPROJECT_SMTP__ADDRESS: {{ printf "%s.%s.svc.%s" "postfix" (.Values.postfix.namespace | default .Release.Namespace) .Values.cluster.networking.domain | quote }}
+  OPENPROJECT_SMTP__AUTHENTICATION: "none"
+  OPENPROJECT_SMTP__ENABLE__STARTTLS__AUTO: "false"
+  OPENPROJECT_SMTP__OPENSSL__VERIFY__MODE: "none"
   OPENPROJECT_MAIL__FROM: "{{ .Values.smtp.localpartNoReply }}@{{ if .Values.functional.email.systemGenerated.useComponentInSenderdomain }}{{ .Values.global.hosts.openproject }}.{{ end }}{{ .Values.global.domain }}"
   OPENPROJECT_HOME__URL: {{ printf "https://%s.%s/" .Values.global.hosts.nubus .Values.global.domain | quote }}
   OPENPROJECT_OPENID__CONNECT_KEYCLOAK_ISSUER: "https://{{ .Values.global.hosts.keycloak }}.{{ .Values.global.domain }}/realms/{{ .Values.platform.realm }}"

helmfile/apps/services/helmfile-child.yaml

@@ -57,6 +57,17 @@ repositories:
     url: "{{ .Values.global.helmRegistry | default .Values.charts.mariadb.registry }}/\
       {{ .Values.charts.mariadb.repository }}"
 
+  # openDesk dkimpy-milter
+  # https://gitlab.opencode.de/bmi/opendesk/components/platform-development/charts/opendesk-dkimpy-milter
+  - name: "dkimpy-repo"
+    keyring: "../../files/gpg-pubkeys/opencode.gpg"
+    verify: {{ .Values.charts.dkimpy.verify }}
+    username: {{ env "OD_PRIVATE_REGISTRY_USERNAME" | quote }}
+    password: {{ env "OD_PRIVATE_REGISTRY_PASSWORD" | quote }}
+    oci: true
+    url: "{{ .Values.global.helmRegistry | default .Values.charts.dkimpy.registry }}/\
+      {{ .Values.charts.dkimpy.repository }}"
+
   # openDesk Postfix
   # https://gitlab.opencode.de/bmi/opendesk/components/platform-development/charts/opendesk-postfix
   - name: "postfix-repo"
@@ -178,6 +189,14 @@ releases:
     installed: {{ .Values.postfix.enabled }}
     timeout: 900
 
+  - name: "opendesk-dkimpy-milter"
+    chart: "dkimpy-repo/{{ .Values.charts.dkimpy.name }}"
+    version: "{{ .Values.charts.dkimpy.version }}"
+    values:
+      - "values-dkimpy.yaml.gotmpl"
+    installed: {{ .Values.dkimpy.enabled }}
+    timeout: 900
+
   - name: "clamav"
     chart: "clamav-repo/{{ .Values.charts.clamav.name }}"
     version: "{{ .Values.charts.clamav.version }}"

helmfile/apps/services/values-dkimpy.yaml.gotmpl

@@ -0,0 +1,44 @@
+# SPDX-FileCopyrightText: Zentrum für Digitale Souveränität der Öffentlichen Verwaltung (ZenDiS) GmbH
+# SPDX-License-Identifier: Apache-2.0
+---
+containerSecurityContext:
+  allowPrivilegeEscalation: true
+  capabilities: {}
+  enabled: true
+  seccompProfile:
+    type: "RuntimeDefault"
+  readOnlyRootFilesystem: true
+  runAsNonRoot: true
+  runAsUser: 1000
+  runAsGroup: 1000
+  privileged: false
+  seLinuxOptions:
+    {{ .Values.seLinuxOptions.dkimpy | toYaml | nindent 4 }}
+
+global:
+  imagePullSecrets:
+    {{ .Values.global.imagePullSecrets | toYaml | nindent 4 }}
+
+image:
+  registry: {{ .Values.global.imageRegistry | default .Values.images.dkimpy.registry | quote }}
+  repository: {{ .Values.images.dkimpy.repository | quote }}
+  tag: {{ .Values.images.dkimpy.tag | quote }}
+  imagePullPolicy: {{ .Values.global.imagePullPolicy | quote }}
+
+podSecurityContext:
+  enabled: true
+  fsGroup: 1000
+
+configuration:
+  domain: "{{ .Values.global.domain }}{{ if .Values.global.mailDomain }}, {{ .Values.global.mailDomain }}{{ end }}"
+  key:
+    {{ .Values.smtp.dkim.key | toYaml | nindent 4 }}
+  mode: "s"
+  selector: {{ .Values.smtp.dkim.selector }}
+  useED25519: {{ .Values.smtp.dkim.useED25519 }}
+
+replicaCount: {{ .Values.replicas.dkimpy }}
+
+resources:
+  {{ .Values.resources.dkimpy | toYaml | nindent 2 }}
+...

helmfile/apps/services/values-postfix.yaml.gotmpl

@@ -49,6 +49,9 @@ postfix:
     - fileName: "sasl_passwd.map"
       content:
         - {{ printf "%s %s:%s" .Values.smtp.host .Values.smtp.username .Values.smtp.password | quote }}
+  {{- if .Values.dkimpy.enabled }}
+  dkimpyHost: "opendesk-dkimpy-milter.{{ .Release.Namespace }}.svc.{{.Values.cluster.networking.domain }}:8892"
+  {{- end }}
   rspamdHost: ""
   relayHost: {{ if .Values.smtp.host }}{{ printf "[%s]:%d" .Values.smtp.host .Values.smtp.port | quote }}{{ else }}""{{ end }}
   relayNets: {{ join " " .Values.cluster.networking.cidr | quote }}

helmfile/apps/xwiki/values.yaml.gotmpl

@@ -138,11 +138,9 @@ properties:
   "property:xwiki:XWiki.XWikiServerXwiki^XWiki.XWikiServerClass.port": 443
   ## SMTP settings
   "property:xwiki:Mail.MailConfig^Mail.SendMailConfigClass.from": "{{ .Values.smtp.localpartNoReply }}@{{ if .Values.functional.email.systemGenerated.useComponentInSenderdomain }}{{ .Values.global.hosts.xwiki }}.{{ end }}{{ .Values.global.domain }}"
-  "property:xwiki:Mail.MailConfig^Mail.SendMailConfigClass.host": {{ .Values.smtp.host | quote }}
-  "property:xwiki:Mail.MailConfig^Mail.SendMailConfigClass.port": {{ .Values.smtp.port | quote }}
-  "property:xwiki:Mail.MailConfig^Mail.SendMailConfigClass.username": {{ .Values.smtp.username | quote }}
-  "property:xwiki:Mail.MailConfig^Mail.SendMailConfigClass.password": {{ .Values.smtp.password | quote }}
-  "property:xwiki:Mail.MailConfig^Mail.SendMailConfigClass.properties": "mail.smtp.starttls.enable=true"
+  "property:xwiki:Mail.MailConfig^Mail.SendMailConfigClass.host": {{ printf "%s.%s.svc.%s" "postfix" (.Values.postfix.namespace | default .Release.Namespace) .Values.cluster.networking.domain | quote }}
+  "property:xwiki:Mail.MailConfig^Mail.SendMailConfigClass.port": 25
+  "property:xwiki:Mail.MailConfig^Mail.SendMailConfigClass.properties": "mail.smtp.starttls.enable=false"
   ## Link LDAP users and users authenticated through OIDC
   "property:xwiki:LDAPUserImport.WebHome^LDAPUserImport.LDAPUserImportConfigClass.addOIDCObject": 1
   "property:xwiki:LDAPUserImport.WebHome^LDAPUserImport.LDAPUserImportConfigClass.OIDCIssuer": "https://{{ .Values.global.hosts.keycloak }}.{{ .Values.global.domain }}/realms/{{ .Values.platform.realm }}"