On Fri, Aug 14, 2009 at 11:24 AM, Chris Owen<[email protected]> wrote:
> On Aug 14, 2009, at 10:13 AM, Mike Cardwell wrote:
>
>> The comparisons on that page are useless. What matters is list policy,
>> reliability and reputation.
>>
>> SpamHaus is hands down the best dnsbl.
>
> While I certainly agree that SpamHaus is very good, I would argue that
> Invalument is currently better. It certainly stops a lot more spam here and
> I think false positives are still extremely low.
>
Invaluement lists are also the top performers at my site:
Total messages: 273235355
Total blocked: 227710956 83.34%
Unknown user 32.00% (32.00%) 87427696
Greylisted 24.88% (16.92%) 46225401
Throttled 11.03% (5.64%) 15399444
Relay access denied 0.01% (0.00%) 7034
Bogus DNS (Broadcast) 0.01% (0.00%) 11692
Bogus DNS (RFC 1918 space) 0.07% (0.03%) 82135
Spoofed Address 0.26% (0.12%) 319551
Unclassified Event 0.77% (0.35%) 949388
Temporary Local Problem 0.01% (0.00%) 8165
Require FQDN sender address 0.04% (0.02%) 51022
Require FQDN for HELO hostname 8.97% (4.02%) 10988455
Require DNS for sender's domain 0.78% (0.32%) 870643
Require Reverse DNS 23.83% (9.65%) 26372877
Require DNS for HELO hostname 0.20% (0.06%) 165157
The Spamhaus Block List 21.87% (6.74%) 18405091
The Invaluement SIP Block List 22.14% (5.33%) 14557404
The SIP/24 Block List 3.84% (0.72%) 1965510
The Barracuda Reputation Block List 3.89% (0.70%) 1915628
(several RBLs not widely used snipped)
We have several hundred domains and each can use it's own filtering
options, so not all RBLs/checks are used on all mail. Checks are
listed in order applied, so a message dropped by "unknown user" for
instance is never seen by "greylisted".
Invalument lists block over 25% of all messages that make it past all
the checks in front of them, including Spamhaus. That's massive.
Barracuda is not used by a majority of clients and is used after the
others, so the low number is not an indication of poor performance.
I've actually had pretty good luck with it.
-Aaron
> ----------------------------------------------------------------------
> RANK RULE NAME COUNT %OFMAIL %OFSPAM %OFHAM
> ----------------------------------------------------------------------
> 1 URIBL_INVALUEMENT 27029 47.58 85.13 0.60
> 2 RCVD_IN_INVALUEMENT 26116 45.81 82.26 0.22
> 3 HTML_MESSAGE 25184 79.83 79.32 80.48
> 4 BAYES_99 23445 41.09 73.84 0.12
> 5 RCVD_IN_INVALUEMENT24 23290 40.85 73.35 0.18
> 6 URIBL_BLACK 22372 39.49 70.46 0.74
> 7 RCVD_IN_JMF_BL 16845 30.70 53.06 2.74
> 8 URIBL_JP_SURBL 15962 27.99 50.27 0.12
> 9 DKIM_SIGNED 12137 37.32 38.23 36.18
> 10 DKIM_VERIFIED 11051 33.93 34.81 32.84
>
> Chris
>
> -------------------------------------------------------------------------
> Chris Owen - Garden City (620) 275-1900 - Lottery (noun):
> President - Wichita (316) 858-3000 - A stupidity tax
> Hubris Communications Inc www.hubris.net
> -------------------------------------------------------------------------
>
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