Download Koma Mail, to get email from anywhere
Koma-Mail is a free and portable email client offering two spam filters, a word based filter and a Bayesian. To prevent false negative detections Koma-Mail uses a white list.
With Koma-Mail you can send and receive mails, encrypted via SSL, through POP3, IMAP (including synchronization), SMTP and WebDav. You can also read your feeds with its integrated RSS viewer.
Features: POP3, IMAP, SMTP, WebDavl; SSL and APOP support; RSS viewer; Calendar; Contact management; Displays HTML Mails; HTML-Editor for composing; Sends and receives mail with inline images; Zips attachments automatically; Mails can be marked with colors; Free folder structure; Automatically cleans folders; Template module; Several user accounts; Several mail accounts per user account;
Encrypts user accounts; Spam filter (including Bayesian); Filter module; Unicode support; Available in 17 languages (Czech, English, Finnish, French, Galego, German, Greek, Hungarian, Italian, Japanese, Nederlands, Polish, Portuguese, Romanian, Russian, Spanish, Ukrainian).
Check also this post on how I defeated spammers once and for all!