Can you set “reply-to” ?

I have recently started using the “Very Simple Contact Form” plugin on my site. I have configured it to send the email (using the email_to tag) to one of our domain addresses. This address has a forwarder set in the hosting companies control panel. Most of the people in the forwarder list receive the email – but not all. Some target domains seem to be more fussy about allowing emails through. I think that the original sender has to be one of our domain addresses. I am therefore using the “from_header” tag – and setting this to one of our domain addresses – but that doesn’t seem to be enough for some target domains. I’m not a mail expert – but I am wondering if the fact that the “reply to” (i.e. the email address of the person using the contact form) in the mail properties is a different domain to the “From” entry is causing problems.

So – I am wondering if it is possible to over-ride “reply to” and if so how this is done. I appreciate that this would mean that we would not be able to do a reply to the original sender as easily – but it is more important that everyone gets the email.

Thanks