Okay, I've transitioned to mysql and made several other changes to my
postfix/dspam/dovecot configs but dspam is still not filtering SPAM.  At
least now, postfix is calling dspam to filter incoming email but SPAM
continues to get delivered even after multiple training attempts using my
Junk folder.  Here's what the mail.log shows:

Jul 22 09:15:35 www postfix/pipe[18013]: 01EE2180E58:
to=<gedwa...@teknotics.com>, relay=dspam, delay=10, delays=9.7/0/0/0.26,
dsn=2.0.0, status=sent (delivered via dspam service)
Jul 22 09:15:35 www postfix/qmgr[17707]: 01EE2180E58: removed
Jul 22 09:15:35 www postfix/local[18017]: 2FD56180E84:
to=<gedwa...@teknotics.com>, relay=local, delay=0.2, delays=0.16/0/0/0.04,
dsn=2.0.0, status=sent (delivered to maildir)

The dspam_stats for this user don't look too good even after multiple
training attempts:

                TP True Positives:                     0
                TN True Negatives:                    4
                FP False Positives:                    2353
                FN False Negatives:                  1947
                SC Spam Corpusfed:                 0
                NC Nonspam Corpusfed:           0
                TL Training Left:                        143
                SHR Spam Hit Rate                  0.00%
                HSR Ham Strike Rate:              99.83%
                PPV Positive predictive value:    0.00%
                OCA Overall Accuracy:              0.09%

And the dovecot antispam plugin is still not working.  Whenever I move SPAM
to the Junk folder, I get the following errors in mail.log:

Jul 22 08:06:32 www dspam[17541]: Signature retrieval for '%s' failed
Jul 22 08:06:32 www dspam[17541]: Unable to find a valid signature.
Aborting.
Jul 22 08:06:32 www dspam[17541]: process_message returned error -5. 
dropping message.

I've been trying to get SPAM processing working for several days and remain
perplexed.  I don't know if I'm dealing with configuration issues or
software bugs.  I could try dropping the dspam database tables and training
fresh but I've already tried training and retraining multiple times so I'm
not too optimistic about that idea.  I consider myself pretty good at
resolving IT issues but, at this point, I'm about ready to scrap dspam and
try a different solution.

Here are my current configs:

main.cf <http://dspam-users.2290790.n4.nabble.com/file/n4641971/main.cf>  
master.cf <http://dspam-users.2290790.n4.nabble.com/file/n4641971/master.cf>  
dspam.conf
<http://dspam-users.2290790.n4.nabble.com/file/n4641971/dspam.conf>  
20-imap.conf
<http://dspam-users.2290790.n4.nabble.com/file/n4641971/20-imap.conf>  

I will be happy to provide any other configs, command output, or logs upon
request.  I would appreciate any ideas or pointers anyone may have to offer.

TIA, ~Gary




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