maildirs is a program that reports the existence of maildirs within a directory tree. It was written for use in configuring the Mutt mail reader with a list of mail storage locations to use.
Open source project that offer summary and download services on this page is a project that carry out their development work on other open source development sites. Their work is linked to this page via a feature called OFI, and their work is not carried out here on OSDN site.