opensmtpd-filter-senderscore - 0.1.1-2+b6 main

This filter performs a SenderScore lookup and allows OpenSMTPD to either block
or slow down a session based on the reputation of the source IP address.
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The filter currently supports:
* blocking hosts with reputation below a certain value
* adding an X-SenderScore header with the score of the source IP address
* adding an X-Spam header to hosts with reputation below a certain value
* applying a time penalty proportional to the IP reputation
* whitelisting IP addresses or subnets