https://issues.apache.org/SpamAssassin/show_bug.cgi?id=6797

          Priority: P2
            Bug ID: 6797
          Assignee: [email protected]
           Summary: lower score for combined RCVD_IN_SORBS_HTTP and
                    RCVD_IN_SORBS_SOCKS hits
          Severity: normal
    Classification: Unclassified
                OS: Linux
          Reporter: [email protected]
          Hardware: PC
            Status: NEW
           Version: unspecified
         Component: Rules
           Product: Spamassassin

rules RCVD_IN_SORBS_HTTP and RCVD_IN_SORBS_SOCKS seem to hit in together too
often, at least here:

% grep -Fh ']: spamd: result: ' /var/log/today/courier | grep -e
RCVD_IN_SORBS_HTTP -e RCVD_IN_SORBS_SOCKS | awk ' /RCVD_IN_SORBS_HTTP/ &&
/RCVD_IN_SORBS_SOCKS/ { both++} END {print NR, both;}'
12 12

% grep -Fh ']: spamd: result: ' /var/log/yesterday/courier | grep -e
RCVD_IN_SORBS_HTTP -e RCVD_IN_SORBS_SOCKS | awk ' /RCVD_IN_SORBS_HTTP/ &&
/RCVD_IN_SORBS_SOCKS/ { both++} END {print NR, both;}'
3 3

They both have similar scores about 2.5 in network&!bayes set.
I propose small score fix, so they together don't puth too hard:

meta SORBS_SOCKS_HTTP (RCVD_IN_SORBS_HTTP && RCVD_IN_SORBS_SOCKS)
describe SORBS_SOCKS_HTTP fix for HTTP&SOCKS proxies in SORBS (usually come
together)
score SORBS_SOCKS_HTTP 0 -2 0 0

Note they are both used in deep scanning, so this indicated that proxies are
often open for both HTTP and SOCKS, but mail from such hosts may be valid and
relayed through spam filtering MTAs.

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