Hurricane Server can automatically tag outbound mail so that any bounces can be tracked, analyzed, and reported. Hurricane Server does this by automatically creating a return path for each message and embedding the tracking information you have specified.
You must set up a bounce domain for Hurricane Server to use in the return path and configure your DNS to point the MX records for the bounce domain back to your Hurricane Server machine. When Hurricane Server receives bounced messages it can extract the tracking information which was embedded in the return path and use this information to figure out which account and Mailing ID the messaged belongs to. For more information, use the web management console to edit an account, select the bounce configuration tab, and press the help button in the upper right-hand corner.