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I have noticed a HUGE influx this past weekend of SPAM coming in in German.. It is passing through the system with ease... any ideas?

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Check to see what the X-SPAM-STATUS FLAG is in the e-mail header:

X-Spam-Status: No, hits=2.9 required=5.0
tests=BAYES_60: 1.789,CLICK_BELOW: 0,SARE_MSGID_EMPTY: 1.106

If HITS=0, then the spammers may be circumventing the filter using some devious tricks. If HITS=3 or more, then compare the HITS to a valid e-mail and adjust the spam level accordingly.

Could you also provide the following information:

1. What version of KMS are you using?
2. What limit do your have your SPAM filter set to (the default is 5.0)?
3. Are you using the BLACKLISTS options under the SMTP section of the Kerio console?
4. Copy & paste the headers from one of the spam messages. Be sure to leave all of the info intact (IP addresses & domains) as some spammers are using additional tricks to spoof the mailserver's IP address (they did it to me & I wrote a custom rule to block it).


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We're getting it, too. It's initially passing through the bayesian filter because the filter doesn't recognize the words. Classify the SPAM and the filter learns fairly quickly to stop it. In our case, we were able to trace the IP address of the sender to another business located in our town. They are trying to track down the individual culprit.


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Actually boys.. it looks like Sober.P is the cause of it...

at least for us... now wether we are infected or just on the recieveing end I don't know yet...
Lyle M

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I've found that most of the spam can be blocked with a more aggressive "Directory Harvast Attack" filter. This is especially effective with a large organization that has normal turnover.

Make sure that your mail exchange is not on the trusted server lists.

This lowered the average user's sober.q spam from 15/hr to less than 1/hr.

Good luck!

-Lyle M.
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