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Keyword Filter

Printed From: LogSat Software
Category: Spam Filter ISP
Forum Name: Spam Filter ISP Support
Forum Description: General support for Spam Filter ISP
Printed Date: 18 January 2019 at 8:50am

Topic: Keyword Filter
Posted By: dave.m
Subject: Keyword Filter
Date Posted: 18 December 2009 at 12:53pm
We're seeing a lot of mail being rejected with this message:

Diagnostic-Code: smtp; 557 This email is rejected. It contains keywords rejected by the antispam content filter. 

We have SFDB and SFDC set to 0 threshold (to disable them) and we have nothing in our keyword blacklist.

Is there another filter that would cause this?



Posted By: LogSat
Date Posted: 20 December 2009 at 11:13pm

There's a few filters that could result in that rejection description (assuming the default rejection messages have not been modified from the SpamFilter.ini file).

The most common ones are:

Email blocked due to the Bayesian filter
Blacklisted keywords (in the "Blacklist / whitelist Tab")
Blacklisted attachments (in the "Blacklist / whitelist Tab")
Exceeded "Max number of spaces in subject line" (in the "Filter Settings" tab)
An empty email containing only the attachment specified in the "BlockBlankEmailsWithAttachments" setting in the SpamFilter.ini file

To be certain of which one was the responsible filter, you can check either SpamFilter's activity logfile (which will log the filter used to block emails), or, if you have access to it, look at the "X-Rejection-Reason" header in the blocked email (it will indicate the filter that blocked it).

Roberto Franceschetti" rel="nofollow - LogSat Software" rel="nofollow - Spam Filter ISP

Posted By: Aronvzla
Date Posted: 01 March 2010 at 2:43pm

Hi, my configuration of keywords filter not work.

I have the following configuration:

Subject:80 %
Email continue coming to me with these subject 
Some suggestion?

Thank you

Posted By: LogSat
Date Posted: 01 March 2010 at 11:04pm

Please note that sometimes spammers will encode the subject lines in the email's source so that the rendered text will be different than the encoded one. In these cases you will need to view the actual email's source to see what the real subject header was.
If that is not the case, please contact us via email at support at so we can ask you to provide us with the SpamFilter's activity logfile for a day this happened, the contents of your SpamFilter\Domains directory, and some of the original emails in question (please note that we'll need the original, unmodified email source - some email clients, notably Microsoft Outlook, completely change the email format making it impossible without registry tweaks to have access to the actual source).

Roberto Franceschetti" rel="nofollow - LogSat Software" rel="nofollow - Spam Filter ISP

Posted By: Aronvzla
Date Posted: 03 March 2010 at 10:08am

Hi, thansk you. I give my example to see if  help me to find the mistake.

My keywords filter:

subject: === sale 70%
subject: =*= today 70%
subject: mr.

Now, example of email in Quarantine:
Subject: =*= Today 70% OFF For 3brpena =*=
Question: Must this mail be rejected?
Because it is stored in Quarantina?
Thanks you

Posted By: LogSat
Date Posted: 03 March 2010 at 10:32pm

If the emails are in the quarantine, SpamFilter did indeed reject them, either thanks to your keyword or due to another filter.
Please note that, if you wish, you can configure most filter so that emails that are blocked by them are permanently rejected and not stored in the quarantine.

Roberto Franceschetti" rel="nofollow - LogSat Software" rel="nofollow - Spam Filter ISP

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