Calypso

Courier sets a new standard of excellence for Internet email clients. With the ability to turn off display of HTML mail and an encrypted address book, Courier is immune to current email worms that replicate by harvesting email addresses from the Windows Address Book and forwarding themselves to all of your contacts. Combined with an outstanding array of features and an intuitive, configurable interface, Courier is the premiere email alternative.

If you're buried alive in email, let Mailbag Assistant come to your rescue with powerful tools to search, organize, analyze, and archive your mountain of messages. It complements your mail program, opens all your messages with ease, and leaves your original message files completely intact. Use it to find relevant correspondence fast, extract attachments and HTML messages, create compressed email archives, export messages, and much more.