I have an email account in: Email > Email Accounts > Account: Activated. Filled in a message and checked the box followed by Save. Now the Autoresponder is working when mail is send to that account. But I also have two Aliasses Email > Email Alias: Pointing to the above account. If I send an email to the alias address no auto-respond message is send back. Any solution for this "bug"? Thanks for the help!
Thats a very old version. You should update to the current ISPConfig release and then deactivate the autoresponder and activate it again.