Yes of course i do so.
I dont know what here is the problem to understand.
As a normal user of a Website it should be possible to get a autorespond (when autorespond is set in roundcube) message like as i get while using another mail client.
The sender is [email protected] becouse this is the web-form that use this adress as sender address. If a user filling up the From on the website (monica-luescher.ch) he must insert his own email. And this email (in my case [email protected]) should get a autorespond email like he get when he is unsing thunderbird or another email client.
Sorry my english