On Mon, Mar 09, 2015 at 08:02:50PM +0100, Christoph Pleger wrote:
> Hello,
>
> it seems that my dspam does not work like expected any more. It did once, but
>
> now, for a long time nothing has been automatically marked as spam, even if
> the spam emails are very similar to what I have defined as spam by moving
> emails to my Spam folder.
>
> About my configuration: I use dovecot as IMAP daemon and there is an antispam
> plugin available for dovecot. I configured that plugin so that emails are
> saved
> in ${MAILUSER_HOME}/spam/${UNIQUE_FILENAME} when moving them to an IMAP
> folder called "Spam" and that emails are saved in
> ${MAILUSER_HOME}/ham/${UNIQUE_FILENAME} when moving them away from the Spam
> folder. From time to time, a cron job calls a script /usr/local/sbin/dspam-
> retrain which processes the files in the ham and spam subdirectories of every
> mail user.
>
> The attached file contains my dovecot configuration files from /etc/dspam, a
> file
> /etc/default/dspam which sets some dspam options and the dspam-retrain
> script.
> As already mentioned, there was a time when my dspam recognized and marked
> spam emails. I do not remember if I changed any of my configuration files
> since
> then.
>
> My dspam version is 3.10.1
>
> Regards
> Christoph
Hi Christoph,
Do DSPAM headers get added to your messages? That will indicate that they are
being processed, at least. We see poor tagging most often as a result of using
the TEFT (train on everything) setting. That is good for initial learning but
over time the sensitivity continues to decrease based on your ratio of good to
bad messages. Effectively, since no mail is exactly 50:50 the system gets
swamped
with data from the most frequent type. If that is the cause, we usually delete
all the tokens and start from scratch with training using the TOE (train on
error)
setting. That gets it going again.
Regards,
Ken
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