how to configure opendkim to sign using domains from "from" and "return-path"

From: Lukasz Ochoda <lochoda_at_endai.com>
Date: Wed, 14 Dec 2016 08:11:01 -0500

Hi All,

I can see that some ESPs they started signing twice the email message, once
for the "from" domain and once for actual sending domain (the one used in
the return0path header)

For example, the email is sent using below headers:

Return-Path: <luke_at_example.com>
From: "Luke" <luke_at_test.com>

Can I do this using opendkim? How?

Thank you for your help.
Luke
Received on Wed Dec 14 2016 - 13:12:18 PST