The DCC Reputation database has reports of 0 mail messages in the last 30 days from mail.gn.apc.org [217.72.179.5], of which 0 were bulk, for a DCC Reputation of unknown.
(server: 101 , checksum: bd972243 8280f864 58149c1b c4ec9388)
Unless more than a locally configured number of bulk messages have been received from an IP address, the DCC Reputation of an IP address will not be computed. Unless reinforced by more reports, small reputations expire in a day or two and bad reputations expire within a month.
This service is only for non-commercial, non-operational use, but there have been at least 1 recent queries from 216.73.216.0/24.