Good moring community.

Im having struggle with the lead/opportunity... We have some web forms  and the messages we are getting from them are sent by a generic email account mail@mydomain.com, and then the email of the sender is included as a Reply to:

The problem is that this is generating a lead with the email mail@mydomain.com and I want that lead to be created with the mail assigned in Reply to:

Does anybody know how can I change the model "email_from" and set the "reply_to" email instead??