Assume your infobot address is email@example.com.
Just put the following line in your .redirect file.
Its important that you have the infobot installed before entering the address line in the .redirect
The original email message will be sent to firstname.lastname@example.org, and the original sender will get the infobot text.
There is also an extensive online manual available.
http://hostings.com 888-404-HOST (toll-free US/PR/VI/GU), 706-897-4743