I love Perl Desk! We've been using it for several months and are very happy with it.
Kevin, are you referring to email piping? There's some good info on the old forums over at Perl Desk pertaining to features, setup, and email piping. The link below pertains to piping.
<a href='http://www.perldesk.com/board/search.php?action=showresults&searchid=13073&sortby=lastpost&sortorder=descending' target='_blank'>http://www.perldesk.com/board/search.php?a...rder=descending</a>