Mozilla Thunderbird is a well-known and widely-used email application that is one of the many products from the house of Mozilla. Available as a free to use software utility, you can implement this email utility in all Windows platforms, including Windows 2000, 2003, 7, XP, and Vista versions. This utility aims to underline the fact that desktop email client is still alive and can be used, despite the insurgence of Web-based mail applications. For those looking for an alternative for MS Outlook, Mozilla promises to offer one of the most powerful and efficient email client tools that is capable of scaling to your requirements for offline mail.

The speed with which this utility loads and the various features that it offer, makes this a worthwhile email application to implement. As in all popular email utilities, this tool too offers HTML support, filtering of spam and junk emails, POP and IMAP support, multiple identities, and support for MS Exchange Server. It is also integrated with security features that guarantee the security of your mail through its various functionalities such as digital signatures, s/MIME, phishing detection, and encryption of messages. The utility also offers several add-ons that can be installed and implemented to enhance the existing security aspects of the tool.

The powerful search tool integrated in this utility is worth a mention. You can configure the tool to index your mails even if you have a huge number of mails sitting in your inbox. However, it is important to note here that this is a resource intensive process and therefore this function should be used overnight or when other tasks are not being conducted. The implementation of this email app is simple; thanks to the Wizard feature that guides you through the process.