rejectUnauthorized: false

email_api/email_api/app.js

@@ -54,7 +54,10 @@ const s3Client = new AWS.S3({ region: AWS_REGION });
 const transporter = nodemailer.createTransport({
   host: SMTP_HOST,
   port: SMTP_PORT,
-  secure: false // Adjust if SMTP requires TLS
+  secure: false, // Adjust if SMTP requires TLS
+  tls: {
+    rejectUnauthorized: false
+  }
 });
 
 // Utility to check if domain exists