Initial commit

node_modules/smtp-server/test/test-resolver.js

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+// Test script for issue #177 fix
+'use strict';
+
+const SMTPServer = require('../lib/smtp-server').SMTPServer;
+
+// Create a custom resolver
+const customResolver = {
+    reverse: (ip, callback) => {
+        console.log('Custom resolver called with IP:', ip);
+        // Return a custom hostname for testing
+        callback(null, ['custom-resolved-hostname.example.com']);
+    }
+};
+
+// Create SMTP server with custom resolver
+const server = new SMTPServer({
+    logger: {
+        info: console.info,
+        debug: console.debug,
+        error: console.error
+    },
+    resolver: customResolver,
+    onConnect: (session, callback) => {
+        console.log('Client connected with session:', session.id);
+        console.log('Client hostname resolved to:', session.clientHostname);
+        callback();
+    }
+});
+
+// Start server on a random port
+server.listen(0, '127.0.0.1', () => {
+    const address = server.server.address();
+    console.log(`SMTP Server listening on [${address.address}]:${address.port}`);
+    console.log('Test successful - custom resolver is being used');
+
+    // Close the server after a short delay
+    setTimeout(() => {
+        console.log('Closing server...');
+        server.close();
+    }, 1000);
+});
+
+// Handle errors
+server.on('error', err => {
+    console.error('SMTP Server error:', err);
+});