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Thread: Can anybody explain how spam percents become numbers in amavisd.conf?

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    jdell is offline Project Contributor
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    Default Can anybody explain how spam percents become numbers in amavisd.conf?

    In the admin screen, there are kill and tag percents.

    How do these values translate into the numeric values in /opt/zimbra/conf/amavisd.conf? Does changing the percents in the admin screen change these tag and kill numeric values?

    Specifically, I'm talking about these amavisd.conf values:

    Code:
    $sa_tag_level_deflt  = -10.0;  # add spam info headers if at, or above that level
    $sa_tag2_level_deflt = 6.6; # add 'spam detected' headers at that level
    $sa_kill_level_deflt = 15; # triggers spam evasive actions
    $sa_dsn_cutoff_level = 15;    # spam level beyond which a DSN is not sent
    $sa_quarantine_cutoff_level = 15;  # spam level beyond which quarantine is off
    Do these numbers (6.6 and 15) come from the admin page defaults of 33% and 75% respectively?

    Also, I see the amavisd.conf.in has variables where the numeric levels go that take these percents. What does this file do?

    I've used amavisd-new and SpamAssassin before, but I'm just not familiar with this percent representation of the tag/kill.

    Any help/explanation greatly appreciated!

  2. #2
    anteos's Avatar
    anteos is offline Project Contributor
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    20 points = 100%

    6,6 = 33% of 20
    15 = 75% of 20
    Stefano Pampaloni
    www.seacom.it

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    jdell is offline Project Contributor
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    Smile

    Quote Originally Posted by anteos
    20 points = 100%

    6,6 = 33% of 20
    15 = 75% of 20
    Ahh, okay. I guess the score of 20 = 100% is totally arbitrary. I quite often receive spam with scores higher than 20. Though in practice, rarely higher than 30.

    The GTUBE test (http://spamassassin.apache.org/gtube/) will return a spam score of 1000 which I believe is the highest spam score you can get with SpamAssassin. Hence, the reason the percents didn't make any sense to me.

    Thanks!

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