ftp://ftp.eenet.ee/pub/cpan/modules/by-category/19_Mail_and_Usenet_News/  direct

[DIR]XMail/  direct  269+ twin directories
[DIR]Sendmail/  direct  530+ twin directories
[DIR]News/  direct  1690+ twin directories
[DIR]NNML/  direct  363+ twin directories
[DIR]Mariachi/  direct  336+ twin directories
[DIR]Mail/  direct  3491+ twin directories
[DIR]IMAP/  direct  1393+ twin directories
[DIR]GMail/  direct  354+ twin directories