I've got in my "blacklist_ip" file and the system seems to be working fine.

On 8/9/2016 4:02 AM, Faris Raouf via spamdyke-users wrote:

Dear all,

We’re having problems with spam being allowed in from IPs with rDNS resolving to “localhost”.

This gets past the reject-empty-rdns filter.

Initially I thought these IPs has no rDNS – using dnsstuff, I get no result (normally meaning no rDNS). But using host or dig I see the IPs really do reverse resolve to localhost.


Example log entry:

spamdyke[24468]: ALLOWED from: sqozt...@vnnic.net.vn to: redac...@redacted.tld origin_ip: origin_rdns: localhost auth: (unknown) encryption: (none) reason: 250_ok_1470423419_qp_24501

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