Hello,
Apologies if this is slightly OT, but I've been over this with the SA list
and they tell me spamassassin is working correctly. Also since smtp-vilter
is one of two milters in packages, I thought there must be people on this
list with experience with it (And I know the author posts here)
I have been running an OpenBSD (now at 3.8) Sendmail relay in my dmz for a
couple years now that forwards to an internal Exchange server. It's nothing
fancy and I'm not really a sendmail or unix expert but it's been getting the
job done.
So the time has come for taking anti-spam measures. To start I'd just like
to mark spam instead of block it (so no OpenBSD's spamd yet), and to that
end I've installed SpamAssassin 3.0.4 and smtp-vilter 1.1.9, both from
packages.
It 'works' to a certain extent, in that smtp-vilter headers are added to all
messages. The problem is, the scores assigned to spam messages are clearly
much too low, and the large majority of spam is not marked as such and much
of it is actually scored negatively.
However, testing manually on a spam I received...
# spamassassin < testspam.txt
and
# spamc -R < testspam.txt
...the message scores a 14.3. However, when I actually received this
message in my mailbox, it was scored -1.6.
So I am thinking that there is a problem somewhere between smtp-vilter and
spamassassin, but where? Has anyone seen this behavior or have a
suggestion? smtp-vilter and (spamassassin's) spamd are both running, are
writing to maillog, and appear to be 'working' as far as I can tell.
This is how smtp-vilter and spamassassin are called:
>From my sendmail.mc:
INPUT_MAIL_FILTER(`smtp-vilter', `S=unix:/var/smtp-vilter/smtp-vilter.sock,
F=T, T=S:10m;R:10m;E:10m')dnl
>From my /etc/rc.conf.local:
smtp_vilter=yes
>From my /etc/rc.local:
# start smtp-vilter
if [ X"${smtp_vilter}" != X"NO" -a \
-x /usr/local/sbin/smtp-vilter ]; then
echo -n ' smtp-vilter'
/usr/local/sbin/smtp-vilter -m -u _vilter -g _vilter
fi
# Start Spamassassin daemon
/usr/local/bin/spamd -u _vilter -d -s mail -x && echo -e "spamd started..."
My entire /etc/smtp-vilter/smtp-vilter.conf: (comments removed)
user=_vilter
group=_vilter
chroot=/var/smtp-vilter
backend=spamd
config-file=spamd:/var/smtp-vilter/etc/spamd.conf
virus-strategy=notify-recipient
recipient-notification=/etc/smtp-vilter/recipient-notification
spam-strategy=mark
spam-subject-prefix="* SPAM *"
unwanted-strategy=mark
error-strategy=tempfail
port=unix:smtp-vilter.sock
tmpdir=/tmp
pidfile=/var/smtp-vilter/smtp-vilter.pid
log-facility=mail
logfile=/var/smtp-vilter/smtp-vilter.log
option=logspam
option=markall
My entire /var/smtp-vilter/etc/spamd.conf: (comments removed)
host=localhost
port=783
tries=3
timeout=600
maxsize=250000
option=chroot-scanrealpath
I've read the man pages for smtp-vilter and smtp-vilter.conf, but I must be
doing something stupidly wrong. Does anyone have any ideas or suggestions?
File permissions? Something with the chrooting of smtp-vilter?
Thanks in advance for any and all help.
Mike Sassaman
