Emailform: ReplyTo problem

[Jeroen...]

When sending an email using the emailform, the ReplyTo address should be the e-mail address taken from the e-mail-field from the form.
In my case (what ever I try) the ReplyTo address is the same as the sender address.

Example:
Sender: info@test.com
Receiver: info@test.com
Copy to: (field 'e-mail' on form): user@receiver.com

The received mail header shows:
From: user@receiver.com
To: info@test.com
ReplyTo: info@test.com

The ReplyTo should be user@receiver.com or should be left out (so the default ReplyTo address is the original sender).

Who can help me sort this out (I use the latest version 4.12)?

[Oliver Georgi]

Create a form field of type "email" -> Save -> then you can select the reply to address by selecting that field.