Available on a free to try basis, for a limited duration of 15 days, InboxGuardian is a security utility that is intended to help users secure their email from malicious content. Designed and developed by Visualware, this utility can be implemented in various Windows systems such as Windows 2003, 7, XP, and Vista versions. This tool allows you to create white lists and black lists to block out spam and prevent it from clogging your mail or mobile device. It also comprises an eMailTrackerPro feature that enables you to view the country from which the mail originated. This feature is especially beneficial in tracking down phishing and other fraudulent emails. It also makes use of DNS blacklists.