xplorer2 

All the shell goodies from windows explorer, none of the hassle! Plus all the features you would expect from a powerful tabbed dual-pane file manager, including Omni-Finder, a find files module that searches everywhere with arbitrary criteria
file manager dual pane explorer replacement viewer shell search column editor norton commander utility system

febooti Command line email 

Utility to send email from command prompt; send attached files, plain text or HTML (with embedded pictures). Supported - TO, CC (Carbon Copy), BCC (Blind Carbon Copy), alternate text for email programs that do not support HTML messages, text encoding
command line email command line mail command line mailer command line e-mailer command line smtp scheduled email send email command line html email html mail automatically send e mail

Blue Tango - The Text Scrambler 

A fun and practical way to make your messages discrete. It keeps plain text, rich text and even portions of messages confidential. For email and other text documents. Your company and internet emails are not private. Now they can be.
security encryption decryption encoding decoding encode decode scrambling unscrambling scramble unscramble privacy text encryption text decryption