Courier is a free email client that offers a comprehensive range of features for Windows users. With high levels of security and reliability, the program sets a new standard of excellence for internet email clients.

With the ability to turn off the display of HTML mail and an encrypted address book, Courier is the go-to email client for anyone looking for a safe and secure option. It is immune to current email worms that replicate themselves by harvesting email addresses from the Windows Address Book and forwarding themselves to all of your contacts.
Courier also boasts support for multiple email accounts, both POP, and IMAP mailboxes, and "Color Markers" to help organize your messages. Users can easily turn HTML mail viewing on or off in any window with a single mouse click. The app also features automatic mailbox backup and mailing list support, including "Blind Send" capabilities.
Courier's superb mail filtering capabilities include advanced anti-SPAM tools, making it highly desirable in a sea of poorly filtered inboxes. It is easily configurable for server and proxy-based anti-SPAM programs.
Address auto-completion when composing mail, multi-language spelling support, auto-response capability, mail templates, mail archiving, optional password protection for mailboxes, and much more make Courier the most reliable email client for Windows users looking for a secure option. When it comes to safe, secure, and reliable email for Windows, Courier delivers.
Version 3.5: N/A
Version 3.5 Build 1098: Plain Text/HTML toggling, Color Markers, enhanced HTML security options