To stay well organized, Mozilla Thunderbird offers filters to deliver your mail into separate folders and inboxes. You can quickly import your mail and contacts from your Outlook or Mail account and set up POP3, IMAP or SMTP accounts in a flash. Setting up Mozilla Thunderbird is painless. It's also now much faster and more stable than before due to the Gecko 5 engine. The fact that like Firefox, Mozilla Thunderbird can be beefed up with all manner of extensions makes it an extremely competitive mail client.
