I am using WAUE via CSS Form Builder now, and I see that ReplyTo is still part of the php object, but I do not see any way to add a ReplyTo address.
This is helpful for web site contact forms because you can set a reply to go to the original sender, but not show the email is "from" the original sender. Showing the email is coming off your server, but "from" the person filling out the form (with for example a hotmail address) is an automatic spam flag.
1) Can you add a ReplyTo field to the current WAUE?
2) If not, could you please add it to the extension.