https://issues.apache.org/SpamAssassin/show_bug.cgi?id=6259

           Summary: Evaluate ReturnPath's RNBL
           Product: Spamassassin
           Version: 3.3.0
          Platform: Other
        OS/Version: All
            Status: NEW
          Severity: enhancement
          Priority: P5
         Component: Rules
        AssignedTo: [email protected]
        ReportedBy: [email protected]


This bug is splitting off the DNSBL from Bug #6247.

# Return Path Reputation Network Blacklist (RNBL):
# https://senderscore.org/blacklistlookup/
header RCVD_IN_RP_RNBL        
eval:check_rbl('rnbl-lastexternal','bl.score.senderscore.com.')
describe RCVD_IN_RP_RNBL       Relay in RNBL,
https://senderscore.org/blacklistlookup/

We have no formal written requirements for accepting a new blacklist in
spamassassin yet.  But if we did have requirements they might contain things
like:

1) Sufficient capacity to handle global lookups and DoS attacks on your
infrastructure.
2) What volume do you allow for free?
3) Clearly written listing and delisting policy.
4) Clearly superior performance demonstrated in weekly masschecks.

#1 I'm guessing ReturnPath has no problem.
#3 Might already be clear enough, not sure.
#2 Requires further discussion about acceptability to the spamassassin project.

#4 http://ruleqa.spamassassin.org/20091212-r889898-n/T_RCVD_IN_RP_RNBL/detail 
We have had only one weekend of data on the performance of RNBL.  Very few FP's
but small spam detection rate as well.  This might be considered too small to
be worthwhile to be added as a spamassassin default rule, especially given your
stated intention to have volume limits and payment requirements in the future.

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