Providing automated responses to emails buys you some time, however customers now expect a response within minutes or hours rather than days.  If you don't respond quickly or reply with an automated response stating how important my email is and you'll reply within 5 days i'm like to switch channel and try you on web chat or the phone for the same thing.  

Now with Pega’s Intelligent Virtual Assistant for Email you can reply automatically.  The Virtual Assistant detects the intent of the email, picks up relevant information (like an account number), and automates the processing and response - And not just with an “automated” reply that feels impersonal.