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Deny-Spammers is a daemon that interfaces to the mail transfer agent and the firewall ruleset control program. It uses a strategy based upon patterns that spammers produce to dynamically update the server's ingress rules.
OverviewDenySpam monitors a mail server log file and uses a firewall to temporarily block or redirect incoming packets from hosts that display spammer-like behavior. The primary benefit of DenySpam over other anti-spam solutions is that it stops many spammers before they waste your bandwidth and server resources, and it doesn't require any maintenance or training in order to be effective. And if you'd rather fight back instead of just blocking spammers outright, DenySpam integrates nicely with t