Hello all,

I'm trying to find a working example for the current stable (Ubuntu) version of rspamd that allows me to customize scores for e-mails by source ASN. Of course, this is because I'm receiving a relatively high amount of spam from one specific ASN (OVH), which is currently responsible for about 90% of incoming spam on my (private) mail server, and I want to react accordingly.

The current rspamd version has deprecated the "IP Score" module in favor of the "Reputation" module, but this module doesn't seem quite right for what I want to achieve. Or I'm just unable to combine the puzzle pieces.

In a current example of spam delivered through OVH, this is the symbol for reputation and ASN:

IP_REPUTATION_HAM (-0.002588) [asn: 16276(-0.00), country: FR(0.00), ip: 51.195.123.203(0.00)]
ASN (0) [asn:16276, ipnet:51.195.0.0/16, country:FR]

I'd like to increase scores for everything coming from "known spammy" ASN, ideally using a local map. I found maps like this in dockerized setups like here: <https://github.com/mailcow/mailcow-dockerized/blob/master/data/conf/rspamd/custom/bad_asn.map> but don't see where the map is used in a rule or selector.

Is there a how-to somewhere, or did some of you already implement this in rspamd's rule logic?

Thanks,

--cku

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