diff --git a/src/application/app.js b/src/application/app.js
index da3b4c8f..5cf49533 100644
--- a/src/application/app.js
+++ b/src/application/app.js
@@ -43,7 +43,7 @@ async function mcodeApp(Client, fromDate, toDate, config, pathToRunLogs, debug,
 
   // If we have notification information, send an emailNotification
   const { notificationInfo } = config;
-  if (notificationInfo) {
+  if (notificationInfo && Object.keys(notificationInfo).length > 0) {
     const notificationErrors = zipErrors(totalExtractionErrors);
     try {
       await sendEmailNotification(notificationInfo, notificationErrors, debug);
diff --git a/src/helpers/schemas/config.schema.json b/src/helpers/schemas/config.schema.json
index be659c9c..9a56df53 100644
--- a/src/helpers/schemas/config.schema.json
+++ b/src/helpers/schemas/config.schema.json
@@ -79,10 +79,13 @@
           "type": "boolean"
         }
       },
-      "required": [
-        "host",
-        "to"
-      ]
+      "dependencies": {
+        "host": { "required": ["to"] },
+        "to": { "required": ["host"] },
+        "from": { "required": ["host", "to"] },
+        "port": { "required": ["host", "to"] },
+        "tlsRejectUnauthorized": { "required": ["host", "to"] }
+      }
     },
     "extractor": {
       "title": "Extractor",