How to enable auto-reply for an email account in Plesk This demo assumes youve already logged in to Plesk. Now lets learn how to enable auto-reply for an email account. Click the Mail tab. Select the email address for which you want to setup an auto-reply. Then click the Auto-Reply tab. Click to switch on auto-reply, then complete the form. If you also want the original message forwarded to another email, enter it in the Forward to field. When ready, click OK. This is the end of the tutorial. You now know how to enable auto-reply for an email account in Plesk. Thats it! Now when an email is sent to [email protected], the auto-reply message will automatically be sent back to the sender.