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How can I add several custom "bad" words into SpamAssassin, so emails that contains that words are marked as a spam?

UPDATE

one of the keys is to edit file /etc/mail/spamassassin, and to add badword filter as described on

http://linuxguruz.wordpress.com/2008/09/16/spamassassin-example/

BUT, in this case, mail is only marked as a spam, it still goes to my Inbox...

What do I have to do, to not receive emails that contains bad words at all?

UPDATE 2

My SpamAssassin does change subject if email is classified as a Spam, and it works fine now. File /etc/mail/spamassassin/local.cf looks like this:

ok_locales all
skip_rbl_checks 0

required_score 5
report_safe 1
rewrite_header Subject ***SPAM***

use_pyzor 1
use_razor2 1

use_auto_whitelist 0


use_bayes 1
use_bayes_rules 1
bayes_auto_learn 1
blacklist_from *@kupiizaradi.cjb.net
blacklist_from *@hallmark.com
whitelist_from *@*hrgworldwide.com
whitelist_from *@bluehost.com
#blacklist_from *@greekajob.com

header CONTAINS_VIG Subject =~ /viagra, Cialix Pills, sex, xxx, penis, pussy, greekajob, greekajobs, pera
zdera/
body CONTAINS_PEN /viagra, sex, xxx, penis, puss, greekajob, greekajobs, perazdera/
score CONTAINS_VIG 1.5
score CONTAINS_PEN 1.5
describe CONTAINS_VIG Bad Word
describe CONTAINS_PEN Bad Word

So, now I need help how to:

  1. move those emails into Spam folder
  2. automatically create Spam folder for every new mail account added on server

File /etc/mail/mailfilter looks like this:

SHELL="/bin/sh"
import EXT
import HOST
VHOME=`pwd`
TIMESTAMP=`date "+%b %d %H:%M:%S"`
#VERBOSE=9

logfile "/var/log/maildrop/maildrop.log"
log "$TIMESTAMP - BEGIN maildrop processing for $EXT@$HOST ==="

`test -r $VHOME/.mailfilter`
if($RETURNCODE == 0)
{
    log "including $VHOME/.mailfilter"
    exception {
        include $VHOME/.mailfilter
    }
}


# does maildirsize exist?
`test -e $VHOME/Maildir/maildirsize`

# if maildirsize doesn't exist
if($RETURNCODE == 1)
{ 

    # does vuserinfo exist?
    `test -x /home/vpopmail/bin/vuserinfo` 

    # if vuserinfo exists
    if($RETURNCODE == 0)
    { 
        # does the user exist?
        `/home/vpopmail/bin/vuserinfo $EXT@$HOST`
        if($RETURNCODE == 0)
        {

            # find out what the user's quota is
            $QUOTA=`/home/vpopmail/bin/vuserinfo -Q $EXT@$HOST`
            log "QUOTA = $QUOTA"

            # does maildirmake exists?
            `test -x /usr/bin/maildirmake`

            # if maildirmake exists
            if($RETURNCODE == 0)
            {

                # does Maildir exist?
                `test -d $VHOME/Maildir`

                # if Maildir exists
                if($RETURNCODE == 0)
                {

                    # make the maildirsize file
                    `/usr/bin/maildirmake -q $QUOTA $VHOME/Maildir`
                    `test -s "$VHOME/Maildir/maildirsize"`

                    # if maildirsize exists
                    if($RETURNCODE == 0)
                    {
                        `/bin/chown vpopmail:vchkpw $VHOME/Maildir/maildirsize`
                        `/bin/chmod 640 $VHOME/Maildir/maildirsize`

                    # else 
                    }
                    else
                    {
                        log "Problem making 'maildirsize' for $VHOME"
                    }

                    # end if maildirsize exists
                }
                else
                {
                    log "Maildir does not exist for $VHOME"
                }

                # end if Maildir exists
            }
            else
            {
                log "maildirmake does not exist"

            # end if maildirmake exists
            }
        }
        else
        {
            log "user $EXT@HOST does not exist"

        # end if user exists
        }
    }
    else
    {
        log "vuserinfo does not exist"

    # end if vuserinfo exists
    }
}
# does maildirsize exist?
`test -e $VHOME/Maildir/maildirsize`
if($RETURNCODE == 0)
{
    MAILDIRQUOTA=`/usr/bin/head -n1 $VHOME/Maildir/maildirsize`
    log "MAILDIRQUOTA = $MAILDIRQUOTA"
}


#--------------------------------------------------------
# Filter spam - scores >= SPAMLIMIT is not delivered
#
# If you DO NOT want to send mail that is over the spam limit
# to spamassassin autolearn, comment: 'cc "|sa-learn -spam"'
#--------------------------------------------------------

##########################################################################
# Below is where I found some of the main problem, i.e apparently the
# regex logic changed, do a diff against this one and the old one,
# the old one was delimited with the '!' (bang) and grouped as a whole.
# it failed the match always.  By using standard regex grouping, I was able
# to get the filter working. By grouping the score accordingly, it
# breaks it into a number and precision, e.g. MATCH1 and MATCH2
##########################################################################

if(/^X-Spam-Status: Yes, score=([0-9]+)\.([0-9]+)/:h)
{
    if($MATCH1 >= 5)
    {
        cc "|sa-learn --spam"
    }

    # if the user doesnt' have a Spam folder
    `test -d $VHOME/Maildir/.Spam`
    if($RETURNCODE == 1)
    {
        `test -x /usr/bin/maildirmake`
        if($RETURNCODE == 0)
        {
            `/usr/bin/maildirmake -f Spam $VHOME/Maildir`
            `test -x /usr/bin/subscribeIMAP.sh`
            if($RETURNCODE == 0)
            {
                `/usr/bin/subscribeIMAP.sh Spam $VHOME`
            }
        }
    }

    # make sure the deliverquota binary exists and is executable
    `test -x /usr/bin/deliverquota`
    if($RETURNCODE == 1)
    {
        exception {
            to "$VHOME/Maildir/.Spam"
        }
    }
    else
    {
        cc "|/usr/bin/deliverquota -w 90 $VHOME/Maildir/.Spam"
        if($RETURNCODE == 0)
        {
            log "=== END ===  $EXT@$HOST  success (quota)"
            EXITCODE=0
            exit
        }
        else
        {
            if($RETURNCODE == 77)
            {
                log "$TIMESTAMP - $EXT@$HOST  bounced (quota)"
                to "|/var/qmail/bin/bouncesaying '$EXT@$HOST is over quota'"
            }
            else
            {
                log \
                 "$TIMESTAMP - $EXT@$HOST failure (unknown deliverquota error)"
                to "$VHOME/Maildir/.Spam"
            }
        }
    }
}

##########################################################################
# Same as above
##########################################################################
if(/^X-Spam-Status: No, score=([\-]*[0-9]+)\.([0-9]+) /:h)
{
    log "   message is clean ($MATCH1.$MATCH2)"
}


#--------------------------------------------------------
# Include any user rules 
#--------------------------------------------------------

`test -r $VHOME/Maildir/.mailfilter`
if($RETURNCODE == 0)
{
    log "   including $VHOME/Maildir/.mailfilter"
    exception {
        include $VHOME/Maildir/.mailfilter
    }
}

`test -x /usr/bin/deliverquota`
if ($RETURNCODE == 1)
{
    log "$TIMESTAMP - $EXT@$HOST WARNING: no deliverquota!"
    log "=== END ===  $EXT@$HOST success"
    exception {
        to "$VHOME/Maildir"
    }
}
else
{
    exception {
        log "RETCODE = $RETURNCODE   delivering to $VHOME/Maildir"
        xfilter "/usr/bin/deliverquota -w 90 $VHOME/Maildir"
    }
    #--------------------------------------------------------
    # check to make sure the message was delivered
    # returncode 77 means that out maildir was overquota - bounce mail
    #--------------------------------------------------------
    if($RETURNCODE == 77)
    {
        log "$TIMESTAMP - BOUNCED: bouncesaying '$EXT@$HOST is over quota'"
        log "$TIMESTAMP - $EXT@$HOST  bounced"
        to "|/var/qmail/bin/bouncesaying '$EXT@$HOST is over quota'"
    }
    else
    {
        log "=== END ===  $EXT@$HOST  success (quota)"
        EXITCODE=0
        exit
    }
}

log "$TIMESTAMP - $EXT@$HOST - WARNING: This message should never be printed!"
[root@um-1027 /etc/mail]#

And .qmail-default looks like this:

|/var/qmail/bin/preline /usr/bin/maildrop /etc/mail/mailfilter

Can you help me please how to fix this and to move spam messages into spam folder?

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1 Answer

With SpamAssassin you just can rewrite a mail detected as a spam but you can't delete it. Postfix or cpanel use SpamAssassin for detect spams not for handle it. But you can create a rules in cpanel (for example) for delete email with a title rewrite by SpamAssassin. In my opinion, it's a bad idea, you can miss false positive. Just put it on a specific folder with a basic rule.

share|improve this answer
    
You're right, because I did manage to rewrite subject (and body), and to mark proper emails as a spam. Can you point me how to manage to automatically move those messages into spam folder (for every email account)? I don't have Cpanel, server is under my maintenance. –  user48058 Dec 20 '13 at 13:47
    
Since I have some updates regarding this problem, I modified a bit my question... –  user48058 Dec 20 '13 at 21:59
    
Looks like email does not "reach" /etc/mail/mailfilter script in case it is spam... Looks like something deletes it before it reach it. In case mail is not spam, everything works fine... –  user48058 Dec 23 '13 at 22:16
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