Version history for KnockKnock shows you how often it was updated over the past months (starting Oct 02, 2003) as well as 'what is new' information for each update (if available, since this information provided by the author).
||Anti Spam program eliminates unsolicited e-mails in your inbox. KnockKnock is a complete e-mail enhancement program and spam solution, and works with your current Email client. Easy features handles, multiple e-mail accounts on multiple servers.
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