Add auto-discovery SMTP testing, unencrypted support, and BCT branding

public/script.js

@@ -65,3 +65,96 @@ document.getElementById('smtpForm').addEventListener('submit', async function(e)
         btnText.textContent = 'Test Configuration & Send Email';
     }
 });
+
+// Auto Discovery Test Handler
+document.getElementById('autoTestBtn').addEventListener('click', async function() {
+    const btn = document.getElementById('autoTestBtn');
+    const spinner = btn.querySelector('.loading-spinner');
+    const btnText = btn.querySelector('.btn-text');
+    const resultsDiv = document.getElementById('results');
+    const statusDiv = document.getElementById('statusMessage');
+    const logOutput = document.getElementById('logOutput');
+
+    // Get form data
+    const form = document.getElementById('smtpForm');
+    const formData = new FormData(form);
+    const data = Object.fromEntries(formData.entries());
+
+    // Only need host, user, pass, from, to for auto test
+    const autoTestData = {
+        host: data.host,
+        user: data.user,
+        pass: data.pass,
+        from: data.from,
+        to: data.to
+    };
+
+    // Reset UI
+    resultsDiv.classList.add('hidden');
+    statusDiv.className = 'status-message';
+    statusDiv.textContent = '';
+    logOutput.textContent = '';
+    
+    // Set Loading State
+    btn.disabled = true;
+    spinner.classList.remove('hidden');
+    btnText.textContent = 'Testing All Configurations...';
+
+    try {
+        const response = await fetch('/api/auto-test-smtp', {
+            method: 'POST',
+            headers: {
+                'Content-Type': 'application/json',
+            },
+            body: JSON.stringify(autoTestData),
+        });
+
+        const result = await response.json();
+
+        // Show Results
+        resultsDiv.classList.remove('hidden');
+
+        if (result.success) {
+            statusDiv.classList.add('status-success');
+            statusDiv.textContent = `✅ ${result.message}`;
+            
+            // Format detailed results
+            let detailedOutput = `Total Tests: ${result.totalTests}\n`;
+            detailedOutput += `Successful: ${result.successfulConfigs}\n`;
+            detailedOutput += `Failed: ${result.totalTests - result.successfulConfigs}\n\n`;
+            detailedOutput += '─'.repeat(50) + '\n\n';
+            
+            result.results.forEach((test, index) => {
+                detailedOutput += `Test ${index + 1}: ${test.config}\n`;
+                detailedOutput += `  Port: ${test.port}\n`;
+                detailedOutput += `  Encryption: ${test.secure ? 'SSL/TLS' : 'STARTTLS'}\n`;
+                detailedOutput += `  Status: ${test.status === 'success' ? '✅ SUCCESS' : '❌ FAILED'}\n`;
+                
+                if (test.status === 'success') {
+                    detailedOutput += `  Email Sent: ${test.messageId}\n`;
+                } else {
+                    detailedOutput += `  Error: ${test.error}\n`;
+                }
+                
+                detailedOutput += '\n';
+            });
+            
+            logOutput.textContent = detailedOutput;
+        } else {
+            statusDiv.classList.add('status-error');
+            statusDiv.textContent = '❌ Error: ' + result.message;
+            logOutput.textContent = result.error || 'Unknown error occurred.';
+        }
+
+    } catch (error) {
+        resultsDiv.classList.remove('hidden');
+        statusDiv.classList.add('status-error');
+        statusDiv.textContent = '❌ Network Error';
+        logOutput.textContent = error.toString();
+    } finally {
+        // Reset Button
+        btn.disabled = false;
+        spinner.classList.add('hidden');
+        btnText.textContent = '🔍 Auto Discovery Test';
+    }
+});

public/styles.css

@@ -88,6 +88,7 @@ body {
   gap: 1rem;
   background: linear-gradient(135deg, #fff 0%, #cbd5e1 100%);
   -webkit-background-clip: text;
+  background-clip: text;
   -webkit-text-fill-color: transparent;
 }
 
@@ -104,9 +105,38 @@ body {
   font-weight: 400;
 }
 
+.youtube-link {
+  display: inline-flex;
+  align-items: center;
+  gap: 0.5rem;
+  margin-top: 1rem;
+  padding: 0.6rem 1.2rem;
+  background: rgba(255, 0, 0, 0.1);
+  border: 1px solid rgba(255, 0, 0, 0.3);
+  border-radius: var(--radius-md);
+  color: #ff6b6b;
+  text-decoration: none;
+  font-size: 0.9rem;
+  font-weight: 500;
+  transition: all 0.3s ease;
+}
+
+.youtube-link:hover {
+  background: rgba(255, 0, 0, 0.2);
+  border-color: rgba(255, 0, 0, 0.5);
+  transform: translateY(-2px);
+  box-shadow: 0 4px 12px rgba(255, 0, 0, 0.3);
+}
+
+.youtube-icon {
+  width: 20px;
+  height: 20px;
+}
+
 /* Panel */
 .panel {
   background: var(--bg-glass);
+  -webkit-backdrop-filter: blur(12px);
   backdrop-filter: blur(12px);
   border: 1px solid rgba(255, 255, 255, 0.1);
   border-radius: var(--radius-lg);
@@ -238,6 +268,28 @@ select:focus {
   transform: translateY(0);
 }
 
+.btn-secondary {
+  background: linear-gradient(135deg, #10b981, #059669);
+  color: white;
+  box-shadow: 0 4px 12px rgba(16, 185, 129, 0.4);
+}
+
+.btn-secondary:hover {
+  transform: translateY(-2px);
+  box-shadow: 0 6px 16px rgba(16, 185, 129, 0.5);
+}
+
+.btn-secondary:active {
+  transform: translateY(0);
+}
+
+.form-actions {
+  display: grid;
+  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
+  gap: 1rem;
+  margin-bottom: var(--spacing-md);
+}
+
 .btn:disabled {
   opacity: 0.7;
   cursor: not-allowed;