Mail::Maildir is a Perl module for reading and writing the Maildir and Maildir++ mail directory formats, which are used with a number of widely deployed MTA's such as Qmail and Postfix.
Warning: Mail::Maildir is currently considered to be very, very pre-alpha software and may not necessarily be stable or bug-free. It's also quite badly coded at this point in time. Use at your own risk.
Source: Maildir-0.2.3.tar.gz
Debian package: libmail-maildir-perl_0.2.3-1_i386.deb