Email Address

I've created a web form that's embedded in our website to enable clients to register support requests.

I want to be able to automatically send an email confirmation back to the client for each request. However, at the moment if I send an email automatically, it shows my personal email address, martynhale@vct.uk.net as the sender. I want to be able to use something like support@vct.uk.net.

How would I do this?
Thanks,
Martyn

martynhale