This very easy to install addon will create a checkbox above the contact us form. When it's checked, the customer/visitor who sends an email to your store by this form, will receive automatically a copy of it in his own mailbox. The subject of that email will also contain "Copy of:", while the subject of the email send to your store contains "Enquiry:". The checkbox is selected as default, but can easily be modified to be deselected as default.
This contrib will also add an extra inputfield to the form for the customer to insert a subject (e.g. the ordernumber) which will be displayed in the emailsubject.
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