fix: Hide notification settings when SMTP_ configuration is unset

server/presenters/env.js

@@ -17,6 +17,8 @@ export default function present(env: Object): Object {
     SLACK_APP_ID: env.SLACK_APP_ID,
     MAXIMUM_IMPORT_SIZE: env.MAXIMUM_IMPORT_SIZE || 1024 * 1000 * 5,
     SUBDOMAINS_ENABLED: env.SUBDOMAINS_ENABLED === "true",
+    NOTIFICATIONS_ENABLED:
+      !!env.SMTP_USERNAME || env.NODE_ENV === "development",
     GOOGLE_ANALYTICS_ID: env.GOOGLE_ANALYTICS_ID,
     RELEASE: env.SOURCE_COMMIT || env.SOURCE_VERSION || undefined,
   };