Setting up your Promail email account in Thunderbird Mozilla Thunderbird is a sophisticated, free POP3/IMAP email client, similar (yet superior) to Microsoft Outlook Express. It is available for Linux, Windows and Mac OS, in dozens of languages.  Thunderbird features integrated SPAM filters, advanced spell-checking, HTML email and other helpful features to make your email experience with Promail a pleasant one.  This tutorial will teach you how to set up your Promail email account within Thunderbird. Read more...