You are now in the directory "mail".
Here are the one-line descriptions for each items in this directory:
elm-2.4ME+22: ELM Mail User Agent exim-0.53: High performance MTA for Unix systems on the Internet. mh-6.8.4: Rand MH mail handling system mm-2.7: Metamail - implementation of MIME, the Multipurpose Internet Mail Extensions mpack-1.5: External MIME packer/unpacker, v1.5 pgpsendmail-1.4: PGPsendmail v1.4 -- PGP sign/encrypt/decrypt messages automatically pine-3.91: Pine 3.91 - Program for Internet News and E-mail popclient-3.0b6: client for pop2, pop3, apop, rpop procmail-3.11p4: ProcMail local mail delivery agent qpop-2.2: Berkeley POP 3 server (now maintained by Qualcomm) version 2.2 smail-3.1.29.1: This is Smail 3.1.29, a program used for receiving and delivering mail. xfmail-0.4: XF-Mail is X-Windows application for receiving electronic mail