Triple* F is a flexible and stable filter which enables you to filter out roughly 90% of all spam and virusses even before it enters a single client in your network.
Price: $ 25, Rating: 8, Downloads: 13
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Query any DNS server for any hostname you want. Provides detailed record information. Root DNS servers are listed by default; you can add unlimited DNS servers yourself.
Price: $0, Rating: 8, Downloads: 11
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