deploy success - first version successed

backend/app.js

@@ -1,9 +1,12 @@
 const express = require('express');
 const cors = require('cors');
 const db = require('./db');
+const { SMTPServer } = require('smtp-server');
+const { saveEmail } = require('./saveEmail');
 
 const app = express();
-const port = 5182;
+const apiPort = 5182;
+const smtpPort = 25;
 
 app.use(cors());
 app.use(express.json());
@@ -27,6 +30,33 @@ app.get('/api/messages', async (req, res) => {
   }
 });
 
-app.listen(port, () => {
-  console.log(`Backend server listening at http://localhost:${port}`);
+// Start API server
+app.listen(apiPort, () => {
+  console.log(`Backend API server listening at http://localhost:${apiPort}`);
+});
+
+// Configure and start SMTP server
+const smtpServer = new SMTPServer({
+  authOptional: true,
+  disabledCommands: ['AUTH'],
+  onData(stream, session, callback) {
+    console.log('Receiving email...');
+    saveEmail(stream)
+      .then(() => {
+        console.log('Email processed and saved successfully.');
+        callback(); // Accept the message
+      })
+      .catch(err => {
+        console.error('Error processing email:', err);
+        callback(new Error('Failed to process email.'));
+      });
+  },
+});
+
+smtpServer.on('error', err => {
+  console.error('SMTP Server Error:', err.message);
+});
+
+smtpServer.listen(smtpPort, () => {
+  console.log(`SMTP server listening on port ${smtpPort}`);
 });