Can anyone give me any ideas why SA is so inconsistent between different
releases?  For example I picked a spam to test a new installation of SA
with.  It had scored over 10 on a previous install.  When the message
arrived on my new box, it was scored at only 8.4.  I downgraded to 2.40
and tried it again and again it was over 10 but not as high as it was with
2.41.  The test spam is in NANAS:

http://groups.google.com/groups?q=sell+stocks+and+buy+oil+now+group:news.admin.net-abuse.*&hl=en&lr=&ie=UTF-8&selm=200210050235.g952ZXp01791%40blocker.rscubed.com&rnum=1

It scored like this:

2.40    13.9
X-Spam-Report: 
        SPAM: ---- Start SpamAssassin results
        SPAM: 13.90 hits, 0 required;
        SPAM: * -1.8 -- Found a Resent-To header
        SPAM: * -0.9 -- Found a X-Authentication-Warning header
        SPAM: * -0.3 -- From: does not include a real name
        SPAM: *  3.5 -- MiME-Version header (oddly capitalized)
        SPAM: *  1.3 -- Bulk email software fingerprint (eGroups) found in
headers
        SPAM: *  2.4 -- BODY: Opportunity - What a deal!
        SPAM: *  1.9 -- BODY: Claims you can be removed from the list
        SPAM: *  1.5 -- BODY: There is no obligation.
        SPAM: *  3.0 -- BODY: Spam phrases score is 13 to 21 (high)
        SPAM:           [score: 19]
        SPAM: *  1.6 -- Message has X-MSMail-Priority, but no X-MimeOLE
        SPAM: *  1.7 -- Message looks like Outlook, but isn't
        SPAM: 
        SPAM: ---- End of SpamAssassin results

2.41    15.1
X-Spam-Report: 
        SPAM: ---- Start SpamAssassin results
        SPAM: 15.10 hits, 0 required;
        SPAM: * -1.8 -- Found a Resent-To header
        SPAM: * -0.9 -- Found a X-Authentication-Warning header
        SPAM: * -0.3 -- From: does not include a real name
        SPAM: *  3.5 -- MiME-Version header (oddly capitalized)
        SPAM: *  1.3 -- Bulk email software fingerprint (eGroups) found in
headers
        SPAM: *  1.2 -- Message-Id is not valid, according to RFC 2822
        SPAM: *  2.4 -- BODY: Opportunity - What a deal!
        SPAM: *  1.9 -- BODY: Claims you can be removed from the list
        SPAM: *  1.5 -- BODY: There is no obligation.
        SPAM: *  3.0 -- BODY: Spam phrases score is 13 to 21 (high)
        SPAM:           [score: 19]
        SPAM: *  1.6 -- Message has X-MSMail-Priority, but no X-MimeOLE
        SPAM: *  1.7 -- Message looks like Outlook, but isn't
        SPAM: 
        SPAM: ---- End of SpamAssassin results

2.42    8.4
X-Spam-Report: 
        SPAM: ---- Start SpamAssassin results
        SPAM: 8.40 hits, 0 required;
        SPAM: * -0.2 -- Found a X-Authentication-Warning header
        SPAM: * -0.2 -- Found a Resent-To header
        SPAM: *  2.4 -- MiME-Version header (oddly capitalized)
        SPAM: *  1.3 -- From: does not include a real name
        SPAM: *  1.0 -- Bulk email software fingerprint (eGroups) found in
headers
        SPAM: *  0.4 -- BODY: Claims you can be removed from the list
        SPAM: *  0.4 -- BODY: Opportunity - What a deal!
        SPAM: *  0.4 -- BODY: There is no obligation.
        SPAM: *  1.3 -- BODY: Spam phrases score is 13 to 21 (high)
        SPAM:           [score: 19]
        SPAM: *  0.5 -- Message has X-MSMail-Priority, but no X-MimeOLE
        SPAM: *  1.1 -- Message looks like Outlook, but isn't
        SPAM: 
        SPAM: ---- End of SpamAssassin results


Now I can understand it scoring higher over time as SA's rules get better
and better at matching spam.  However I really don't understand why a new
release would score it lower, especially looking at the specific rules
that were scored lower.  Can anyone shed any light on this?

Many thanks
 Justin



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