The Helpdesk::Mail System is a Perl application intended to assist Helpdesks and Support Centers in organizing their email communication with their customers. Especially if there is one email address and several people who reply on those emails and answer questions, Helpdesk::Mail can come in handy. one can assign a "user-id" for a mail to track down how often one user asks for help, plus an additional "Knowledge Base" feature: if your customers ask the same questions over and over again, you can save the answer in the Knowledge Base and prefill a reply with this answer, just by typing in some keywords and click on a link.