I suggest http://drupal.org/project/returnpath
If nothing else the project page provides some guidance.
On Mon, May 18, 2009 at 4:22 PM, Mohammed@atexplorer.com mohammed@atexplorer.com wrote:
how do I modify the mail headers that are sent by Drupal? for some reason emails sent from my installation have the sender as nobody@host.domain.com. note that I have specified a valid email address under site configuration / site information.
Regards, Greg