add timeouts

server/config/mailer.js

@@ -18,6 +18,9 @@ export function initMailer() {
     port,
     secure: port === 465,
     auth: { user, pass },
+    connectionTimeout: 10_000,  // 10 s to establish TCP connection
+    greetingTimeout: 10_000,   // 10 s to receive SMTP greeting
+    socketTimeout: 15_000,     // 15 s of inactivity before abort
   });
 
   console.log('✅ SMTP mailer configured');