Pipelining Soupermail allows you to use Soupermail to process a form and then send on the original information to another URL for processing. This is useful if you want to use Soupermail as a logger, or as a quick email function to another web application.

To use pipelining, you need to use the gotosuccess, gotoblank, gotofailure and gotoexpires config commands. These commands usually specify a URL to go to once Soupermail has finished, but they can also be used dynamically by using variable replacement of CGI VARIABLES.