diff --git a/dist/missingeventdetector.js b/dist/missingeventdetector.js
index 1061fe8..ed605d7 100644
--- a/dist/missingeventdetector.js
+++ b/dist/missingeventdetector.js
@@ -15,7 +15,10 @@ class MissingEventProcessor extends Processor.AProcessor {
         this.smtp = nodemailer.createTransport({
             host: config.dict.smtpHost,
             port: config.dict.smtpPort,
-            secure: false
+            secure: false,
+            tls: {
+                rejectUnauthorized: false
+            }
         });
         this.timer = setInterval(() => {
             this.clientMap.forEach((value, key) => {
diff --git a/src/missingeventdetector.ts b/src/missingeventdetector.ts
index a089aec..d56701f 100644
--- a/src/missingeventdetector.ts
+++ b/src/missingeventdetector.ts
@@ -29,7 +29,10 @@ class MissingEventProcessor extends Processor.AProcessor {
         this.smtp = nodemailer.createTransport({
             host: config.dict.smtpHost,
             port: config.dict.smtpPort,
-            secure: false
+            secure: false,
+            tls: {
+                rejectUnauthorized: false
+            }
         });
 
         this.timer = setInterval(() => {