Mailspring - Mailspring is a mail client for Mac, Windows and Linux.

The Silver Searcher - A code searching tool similar to ack, with a focus on speed.

Thunderbird - Thunderbird is a free email application that's easy to set up and customize - and it's loaded with great features!

grep - grep is a command-line utility for searching plain-text data sets for lines matching a regular...

The Bat - The Bat! is a secure desktop email client for Windows, designed to protect your correspondence against third-parties and to save your time.

grepWin - grepWin is a simple search and replace tool which can use PCRE regular expressions to search for...