WordPress plugin to set the Return-Path header of outgoing emails to the "From" email address. This helps solve issues when emails are sent from your hosts domain or IP address, and makes it look like your emails are spam. Drop in your plugins or mu-plugins folder. This works with Contact Form 7, Gravity Forms, and most other WordPress form plugins.
Download the plugin as a ZIP file. Extract it in to your plugins folder. Or copy the file in to the root of mu-plugins.
There are no settings or options. It will set the "Return-Path" of your emails to the "From" address of the form, which for deliverability should be an address at the sending websites domain.