Hi Andrew,

your post inspired me to go off and give CRM114 a try. I've also found what looks like the best way to integrate CRM114 training with IMAP so far, and that's the dovecot-antispam plugin. Functionally equivalent to what your cron scripts do, but does so in real time.

FWIW, here's what I had to to to set it up:

1. Install CRM114 to ~/crm as per the instructions. The only significant changes I made to the default Debian etch configuration were to remove the ADV/UNS tagging of subjects, since I don't need this.
2. Create the "crm-spam" and "crm-unsure" folders, for holding SPAM and "unsure" email respectively.
3. Set up my ~/.mailfilter to filter mail through CRM114:
xfilter "/usr/bin/crm -u $HOME/crm $HOME/crm/mailreaver.crm"
if (/^X-CRM114-Status: SPAM/:h)
to Maildir/.crm-spam/
if (/^X-CRM114-Status: UNSURE/:h)
to Maildir/.crm-unsure/
# [...] At this point we know CRM114 thinks the message is Ham, so we file it as normal

4. Download and install the dovecot-antispam plugin, and configure it as follows:
   
   plugin {
   # semicolon-separated list of Trash folders
   antispam_trash = trash;Trash;Deleted Items

   # semicolon-separated list of spam folders
   antispam_spam = crm-spam

   # semicolon-separated list of unsure folders
   antispam_unsure = crm-unsure

   # crm114-exec plugin

   # mailreaver binary
   antispam_crm_binary = /usr/bin/crm

   # semicolon-separated list of extra arguments to crm
   antispam_crm_args = -u;%h/crm;%h/crm/mailreaver.crm

   # NOTE: you need to set the signature for this backend
antispam_signature = X-CRM114-CacheID
}


This left me with a setup where:

• Ham goes to my INBOX, or whichever subfolder I have set in ~/.mailfilter (e.g. for mailing lists).
• SPAM goes to the crm-spam folder.
• UNSURE email goes to the crm-unsure folder.
• To train messages that turn up in the crm-unsure folder, I just move them into the appropriate folder (crm-spam if SPAM or somewhere else if Ham).
• To retrain Ham misclassified as SPAM, I move it from the crm-spam folder to wherever it belongs.
• To retrain SPAM misclassified as Ham, I move it from whichever folder it turned up in to the crm-spam folder.

How much easier can it get? :-)

Now to see how well CRM114 does after it's had some serious training.

-mato