Refactor admin dashboard and fix mobile phone input dropdown

- Simplify admin dashboard by consolidating configuration sections
- Fix mobile dropdown display issues in PhoneInputWrapper component
- Add proper flex layout and minimum height for mobile country list
- Update email configuration and testing functionality
- Remove redundant configuration cards in favor of unified portal settings

server/utils/email.ts

@@ -60,20 +60,67 @@ export class EmailService {
     }
 
     try {
-      this.transporter = nodemailer.createTransport({
+      // Determine security settings based on port
+      let useSecure = this.config.secure;
+      let requireTLS = false;
+      
+      // Auto-configure based on standard ports if not explicitly set
+      if (this.config.port === 587) {
+        // Port 587 typically uses STARTTLS
+        useSecure = false;
+        requireTLS = true;
+      } else if (this.config.port === 465) {
+        // Port 465 typically uses SSL/TLS
+        useSecure = true;
+        requireTLS = false;
+      } else if (this.config.port === 25) {
+        // Port 25 typically unencrypted (not recommended)
+        useSecure = false;
+        requireTLS = false;
+      }
+
+      // Build transporter options
+      const transporterOptions: any = {
         host: this.config.host,
         port: this.config.port,
-        secure: this.config.secure, // true for 465, false for other ports
-        auth: this.config.username && this.config.password ? {
+        secure: useSecure,
+        // Connection timeout settings
+        connectionTimeout: 30000, // 30 seconds
+        greetingTimeout: 30000,
+        socketTimeout: 30000,
+        // Debug logging
+        logger: false,
+        debug: false
+      };
+
+      // Add requireTLS if needed (for STARTTLS)
+      if (requireTLS && !useSecure) {
+        transporterOptions.requireTLS = true;
+      }
+
+      // Configure TLS options
+      transporterOptions.tls = {
+        rejectUnauthorized: false, // Accept self-signed certificates
+        // Don't specify minVersion or ciphers to allow auto-negotiation
+      };
+
+      // Add authentication only if credentials are provided
+      if (this.config.username && this.config.password) {
+        transporterOptions.auth = {
           user: this.config.username,
           pass: this.config.password
-        } : undefined,
-        tls: {
-          rejectUnauthorized: false // Accept self-signed certificates in development
-        }
-      });
+        };
+      }
 
-      console.log('[EmailService] ✅ SMTP transporter initialized');
+      this.transporter = nodemailer.createTransport(transporterOptions);
+
+      console.log('[EmailService] ✅ SMTP transporter initialized with options:', {
+        host: this.config.host,
+        port: this.config.port,
+        secure: transporterOptions.secure,
+        requireTLS: transporterOptions.requireTLS,
+        auth: !!transporterOptions.auth
+      });
     } catch (error) {
       console.error('[EmailService] ❌ Failed to initialize SMTP transporter:', error);
     }