Eudora
Long-standing leader in industrial strength email software. try the latest version with spamwatch, or the free sponsored or light modes. qualcomm eudora products also offers software for email server and mobile email.
http://www.eudora.com
Freemail
Freemail
http://www.freemail.nl
Hotmail
Hotmail
http://www.hotmail.com
Pegasus Mail
Pegasus Mail
http://www.pmail.com