Thunderbird is a great email client from the same people who brought you the Firefox browser. Thunderbird gives you IMAP/POP support, a built-in RSS reader, support for HTML mail, powerful quick search, saved search folders, advanced message filtering, message grouping, labels, return receipts, smart address book LDAP address completion, import tools, and the ability to manage multiple e-mail and newsgroup accounts. * Full-Featured Email * Junk Mail Filters * Anti-Phishing Protection * Advanced Security * Automatic Updates

       
enlarge all Thunderbird images (8)

Receive and send emails,POP3 and IMAP supported. Is a good email client from Mozilla.Is a modern alternative to outlook Express.The design is better , but the functionalities are in the most of the cases the same.Add a new account and set the proxy configurations (SMPT,POP3 options).Compose message window have more options and you have access more fast to all the options.