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update symbols weights according to updates in #3690 

I updated the symbol weights according to my new insights in #3690 to
fix a bug pointed out by @2GetApp and to improve the logic itself.
Previously, I reasoned about combinations of symbols that cannot exists,
e.g., SPF allow, DKIM allow, DMARC reject. Removing these symbols and
then reasoning about the rest is more appropriate.

Moreover, I added `DMARC_POLICY_NA` and `DMARC_POLICY_SOFTFAIL` to the
whole calculation.

The issue description of #3690 I updated. I also added the Rust code I
used to do and verify the calculations.
This commit is contained in:
georglauterbach 2024-02-29 16:22:16 +01:00
parent 2167ae9a1e
commit 11e6094140
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GPG Key ID: F367F7C43C118578
1 changed files with 5 additions and 5 deletions
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10
target/rspamd/scores.d/policies_group.conf
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@ -54,7 +54,7 @@ symbols = {
groups = ["dkim"]; groups = ["dkim"];
} }
"R_DKIM_NA" { # DKIM is not available for this domain "R_DKIM_NA" { # DKIM is not available for this domain
weight = 0; weight = 1;
description = "Missing DKIM signature"; description = "Missing DKIM signature";
one_shot = true; one_shot = true;
groups = ["dkim"]; groups = ["dkim"];
@ -84,12 +84,12 @@ symbols = {
groups = ["dmarc"]; groups = ["dmarc"];
} }
"DMARC_POLICY_ALLOW_WITH_FAILURES" { # DMARC check succeeded but either SPF or DKIM was not successful "DMARC_POLICY_ALLOW_WITH_FAILURES" { # DMARC check succeeded but either SPF or DKIM was not successful
weight = -0.5; weight = 0;
description = "DMARC permit policy with DKIM/SPF failure"; description = "DMARC permit policy with DKIM/SPF failure";
groups = ["dmarc"]; groups = ["dmarc"];
} }
"DMARC_NA" { # DMARC is not available for this domain "DMARC_NA" { # DMARC is not available for this domain
weight = 1; weight = 0.5;
description = "No DMARC record"; description = "No DMARC record";
groups = ["dmarc"]; groups = ["dmarc"];
} }
@ -99,12 +99,12 @@ symbols = {
groups = ["dmarc"]; groups = ["dmarc"];
} }
"DMARC_POLICY_QUARANTINE" { # DMARC check failed and the policy is to quarantine "DMARC_POLICY_QUARANTINE" { # DMARC check failed and the policy is to quarantine
weight = 1.5; weight = 3;
description = "DMARC quarantine policy"; description = "DMARC quarantine policy";
groups = ["dmarc"]; groups = ["dmarc"];
} }
"DMARC_POLICY_REJECT" { # DMARC check failed and the policy is to reject "DMARC_POLICY_REJECT" { # DMARC check failed and the policy is to reject
weight = 2; weight = 5.5;
description = "DMARC reject policy"; description = "DMARC reject policy";
groups = ["dmarc"]; groups = ["dmarc"];
} }