[gentoo-project] [infra] Anti-spam changes: removal of malware patrol and other older ClamAV rules

[gentoo-project] [infra] Anti-spam changes: removal of malware patrol and other older ClamAV rules

[Robin H. Johnson]

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Hi,

As a result of a recent high-impact [1] false positive spam detection in
Gentoo mail, we've disabled using the MalwarePatrol ruleset in Clamav
for spam detection for all inbound mail to @gentoo.org

All other old rulesets that haven't seen an update in more than 1 year
were also cleaned out, as they seem to be no longer available upstream
or explicitly no longer updated.

[1] Notably, MalwarePatrol's basic subscription got an entry matching
any mail with "https://docs.google.com" in it, which ended up blocking
some mail about GSOC payments this year. Upstream MalwarePatrol provides
minimal workarounds for that only: see "False positives" on:
https://www.malwarepatrol.net/non-commercial/ 

-- 
Robin Hugh Johnson
Gentoo Linux: Dev, Infra Lead, Foundation Treasurer
E-Mail   : robbat2@gentoo.org
GnuPG FP : 11ACBA4F 4778E3F6 E4EDF38E B27B944E 34884E85
GnuPG FP : 7D0B3CEB E9B85B1F 825BCECF EE05E6F6 A48F6136

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