[Dspam-user] All mail marked Innocent for one user

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[Dspam-user] All mail marked Innocent for one user

Plexus LLC
Hi,

I’m having a problem getting spam marked for a particular user. Below is the output of spam_stats -H for three users. User 3 is the obvious problem. User 2 is my own personal email account upon which dspam is working great. User 1 is another user who is having good results.

User 3 is newer to the server, but has been diligently retraining spam for several weeks now (I have dovecot-antispam plugin set up) and dspam has not yet marked one spam message as anything other than (I)nnocent.

All of the users on the system have the exact same configuration - there are no individual level configs or preferences in effect. I am obviously not using any groups - each user has their own individual dictionary. Training mode is set to TEFT.

I’m afraid I am a total noob with troubleshooting dspam. I’m a sysadmin and I set up the mail server, but since I haven’t had any trouble till now, I don’t really know where to start in figuring out the problem and in this case my usually formidable google-fu has failed me.

What can I do to try to diagnose why dspam is forsaking User 3?

Thanks for any and all help,
pjv


User 1:
        TP True Positives:                  5599
        TN True Negatives:                  2007
        FP False Positives:                  152
        FN False Negatives:                   69
        SC Spam Corpusfed:                     0
        NC Nonspam Corpusfed:                  0
        TL Training Left:                    341
        SHR Spam Hit Rate                 98.78%
        HSR Ham Strike Rate:               7.04%
        PPV Positive predictive value:    97.36%
        OCA Overall Accuracy:             97.18%

User 2:
        TP True Positives:                   263
        TN True Negatives:                  2015
        FP False Positives:                    1
        FN False Negatives:                   18
        SC Spam Corpusfed:                     0
        NC Nonspam Corpusfed:                  0
        TL Training Left:                    484
        SHR Spam Hit Rate                 93.59%
        HSR Ham Strike Rate:               0.05%
        PPV Positive predictive value:    99.62%
        OCA Overall Accuracy:             99.17%

User 3:
        TP True Positives:                     0
        TN True Negatives:                   377
        FP False Positives:                    1
        FN False Negatives:                  103
        SC Spam Corpusfed:                     0
        NC Nonspam Corpusfed:                  0
        TL Training Left:                   2122
        SHR Spam Hit Rate                  0.00%
        HSR Ham Strike Rate:               0.26%
        PPV Positive predictive value:     0.00%
        OCA Overall Accuracy:             78.38%
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Re: [Dspam-user] All mail marked Innocent for one user

Plexus LLC
Nobody? Nothing?

Update on poor User 3:

        TP True Positives:                     0
        TN True Negatives:                   421
        FP False Positives:                    1
        FN False Negatives:                  119
        SC Spam Corpusfed:                     0
        NC Nonspam Corpusfed:                  0
        TL Training Left:                   2078
        SHR Spam Hit Rate                  0.00%
        HSR Ham Strike Rate:               0.24%
        PPV Positive predictive value:     0.00%
        OCA Overall Accuracy:             77.82%

Shouldn’t dspam be catching at least *some* spam by now?

Can anyone suggest what I can analyze, or what tests I can do to try to understand why this user is getting zero spam protection from dspam while other users are getting good results with identical settings?

Thanks,
pjv

On Feb 26, 2014, at 8:17 PM, Plexus LLC <[hidden email]> wrote:

> Hi,
>
> I’m having a problem getting spam marked for a particular user. Below is the output of spam_stats -H for three users. User 3 is the obvious problem. User 2 is my own personal email account upon which dspam is working great. User 1 is another user who is having good results.
>
> User 3 is newer to the server, but has been diligently retraining spam for several weeks now (I have dovecot-antispam plugin set up) and dspam has not yet marked one spam message as anything other than (I)nnocent.
>
> All of the users on the system have the exact same configuration - there are no individual level configs or preferences in effect. I am obviously not using any groups - each user has their own individual dictionary. Training mode is set to TEFT.
>
> I’m afraid I am a total noob with troubleshooting dspam. I’m a sysadmin and I set up the mail server, but since I haven’t had any trouble till now, I don’t really know where to start in figuring out the problem and in this case my usually formidable google-fu has failed me.
>
> What can I do to try to diagnose why dspam is forsaking User 3?
>
> Thanks for any and all help,
> pjv
>
>
> User 1:
>         TP True Positives:                  5599
>         TN True Negatives:                  2007
>         FP False Positives:                  152
>         FN False Negatives:                   69
>         SC Spam Corpusfed:                     0
>         NC Nonspam Corpusfed:                  0
>         TL Training Left:                    341
>         SHR Spam Hit Rate                 98.78%
>         HSR Ham Strike Rate:               7.04%
>         PPV Positive predictive value:    97.36%
>         OCA Overall Accuracy:             97.18%
>
> User 2:
>         TP True Positives:                   263
>         TN True Negatives:                  2015
>         FP False Positives:                    1
>         FN False Negatives:                   18
>         SC Spam Corpusfed:                     0
>         NC Nonspam Corpusfed:                  0
>         TL Training Left:                    484
>         SHR Spam Hit Rate                 93.59%
>         HSR Ham Strike Rate:               0.05%
>         PPV Positive predictive value:    99.62%
>         OCA Overall Accuracy:             99.17%
>
> User 3:
>         TP True Positives:                     0
>         TN True Negatives:                   377
>         FP False Positives:                    1
>         FN False Negatives:                  103
>         SC Spam Corpusfed:                     0
>         NC Nonspam Corpusfed:                  0
>         TL Training Left:                   2122
>         SHR Spam Hit Rate                  0.00%
>         HSR Ham Strike Rate:               0.26%
>         PPV Positive predictive value:     0.00%
>         OCA Overall Accuracy:             78.38%
> ------------------------------------------------------------------------------


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Re: [Dspam-user] All mail marked Innocent for one user

Rick Leir
You have checked the opt-in or opt-out settings?

There are a few debug options. One of them enables more headers to be added to each email.  Another enables more logging to the log files. 

HTH -- Rick

On Tue, 2014-03-04 at 05:31 -0700, Plexus LLC wrote:

Shouldn’t dspam be catching at least *some* spam by now?

Can anyone suggest what I can analyze, or what tests I can do to try to understand why this user is getting zero spam protection from dspam while other users are getting good results with identical settings?


Rick Leir, Senior Developer
http://CirrusComputing.com/


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freedom to use Git, Perforce or both. Make the move to Perforce.
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