One of my users just received a totally empty message from a friend
(sent as a test message, but unwisely with no subject or body).
This hit EMPTY_MESSAGE and MISSING_SUBJECT for a total of 4.1 points.
Fair enough - I've seen plenty of empty spam (presumably due to buggy
spamware or as trial runs to eliminate dead addresses).
The problem is that the message also hit Pyzor and Razor (and thus
DIGEST_MULTIPLE) adding another 6.4 points.
I can understand that an empty message is considered spammy - I've seen
plenty of empty spam - but not that SA tries to look up an empty message
in Pyzor and Razor.
Any comments?
Content analysis details: (9.7 points, 5.0 required)
pts rule name description
---- ---------------------- --------------------------------------------------
0.1 HTML_90_100 BODY: Message is 90% to 100% HTML
-2.6 BAYES_00 BODY: Bayesian spam probability is 0 to 1%
[score: 0.0000]
1.1 MIME_HTML_MOSTLY BODY: Multipart message mostly text/html MIME
0.0 HTML_MESSAGE BODY: HTML included in message
0.5 RAZOR2_CHECK Listed in Razor2 (http://razor.sf.net/)
1.5 RAZOR2_CF_RANGE_E4_51_100 Razor2 gives engine 4 confidence level
above 50%
[cf: 100]
0.5 RAZOR2_CF_RANGE_51_100 Razor2 gives confidence level above 50%
[cf: 100]
3.7 PYZOR_CHECK Listed in Pyzor (http://pyzor.sf.net/)
0.8 DIGEST_MULTIPLE Message hits more than one network digest check
1.8 MISSING_SUBJECT Missing Subject: header
2.3 EMPTY_MESSAGE Message appears to be empty with no Subject: text
John.
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