spam filtering errors
Jonas Maebe
jonas.maebe at elis.ugent.be
Fri Jan 31 07:59:21 CST 2014
Hi,
Since the latest update of the mailing list server, a lot of mails
sent to this list are wrongly classified as spam by CodeWeavers' mail
server. I've already sent a mail about this to postmaster at codeweavers.com
several months ago, but got no reply and nothing appears to have
changed.
It seems that the main culprit is the "SINGLE_HEADER_3K" spamassassin
check, in combination with a very low spam score threshold (1.0).
Below is an example from Stefan Dösinger's last mail (titled "dpnet
patches").
Jonas
X-Spam-Flag: YES
X-Spam-Report: Spam detection software, running on the system
"wine.codeweavers.com", has
identified this incoming email as possible spam. The original message
has been attached to this so you can view it (if it isn't spam) or label
similar future email. If you have any questions, see
the administrator of that system for details.
Content preview: Hi Alistair, A while ago I promised to have a closer
look
at your dpnet patches. ItXs a bit delayed, but here are some
comments. How
serious are you about dplay? Do you intend to do more work towards
implementing
it, or is that just wishful thinking on my part? [...]
Content analysis details: (1.1 points, 1.0 required)
pts rule name description
---- ----------------------
--------------------------------------------------
3.0 SINGLE_HEADER_3K A single header contains 3K-4K characters
0.0 FREEMAIL_FROM Sender email is commonly abused enduser
mail provider
(stefandoesinger[at]gmail.com)
-1.9 BAYES_00 BODY: Bayes spam probability is 0 to 1%
[score: 0.0000]
0.0 T_DKIM_INVALID DKIM-Signature header exists but is not
valid
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