Sorry, I should have mentioned: clients use IMAP.
When setting up everything on a single VM, I achieve the following result:
- a SPAM folder is created (with auto-subscription) for each user
- DSPAM is trained by dragging spam from Inbox into SPAM folder or vice-versa
(if good mail was mistreated as spam)
- no HAM folder is used, everything happens between Inbox and SPAM
- no forwarding to spam-u...@domain.com or notspam-u...@domain.com is
used, only drag'n'drop between Inbox and SPAM.
What I would like to achieve, is the same spam management capabilities, but
with separate Postfix, Dovecot and DSPAM servers.
I already managed to separate Postfix and DSPAM on two different VMs:
- Postfix sends incoming mail to DSPAM via lmtp,
- DSPAM checks mail and re-injects it back into Postfix via smtp
- mail is delivered with DSPAM headers
Now I'm confused about configuring Dovecot for DSPAM training, because on
Dovecot's VM I don't have anymore /usr/local/bin/dspam,
so obviously I can't use in Dovecot's configs: "antispam_dspam_binary =
/usr/local/bin/dspam".
Does it mean that I have to install DSPAM on Dovecot's VM also, to run as a
client (?) for separate DSPAM server?
But this idea confuses me: I lose visibility of how many times a mail will go
back and forth between different VMs...
That's why I was asking about best practice setup - I wonder how things are
done in REAL setups,
not in TEST setups described everywhere, with Postfix-Dovecot-DSPAM mess on a
single VM.
I'd hardly believe that such a setup is used in reality, but you can correct
me, if I'm wrong.
Среда, 18 февраля 2015, 23:07 -07:00 от Eric Broch <ebr...@whitehorsetc.com>:
>1) If you're using IMAP clients you
could set up ham/spam folders for each user into which they
copy/move good/bad email. Every so often copy (scp, unison,
rsync, etc) the email into a folder for each email user to the
server running dspam and train there using bash scripts. The email
folder should have the u...@domain.tld so that you can train DSPAM
per user, if you want.
>
>2) If you're clients are running POP3, create seperate IMAP
accounts for each user on the dspam host using dovecot. So each
user will have one POP3 account on your mail server and an IMAP
account on the dspam host. Users will copy/move good/bad mail to
the IMAP ham/spam folder. You can train on each user's ham/spam
folder, or 3) Each user forwards the ham/spam back to training
accounts on the dspam host of the following to the following
addresses:
>
>Forward “false positives” to: notspam-john...@mydomain.com
>Likewise you can send missed spam to: spam-john...@mydomain.com
>
>Eric
>
>On 2/18/2015 10:19 PM, Орхан Касумов wrote:
>>Hello, please share an advice!
>>If I have separate Postfix and Dovecot VMs, should I:
>>1) install DSPAM as a completely separate 3rd VM (which I'd
prefer),
>>2) or install it on Postfix VM,
>>3) or install it on Dovecot VM?
>>The confusing point for me is DSPAM retraining via Dovecot
antispam and sieve. When everything is on a single VM, I can put
in /usr/local/etc/dovecot/conf.d/90-plugin.conf:
>>antispam_backend = dspam
>>...
>>antispam_dspam_binary = /usr/local/bin/dspam
>>Here the last statement implies that DSPAM is on the same VM
with Dovecot. But if I wanted to separate DSPAM completely, how
should I accomplish DSPAM retraining? Or it is not a recommended
setup - to have a dedicated DSPAM server?
>>P.S. For some reason, all HowTos in the Internet describe mail
system setup with Postfix, Dovecot and DSPAM on the same VM.
While it's useful as a working TEST setup, it gives no idea (and
doesn't even come close) on how to implement a REAL setup with
separate Postfix, Dovecot and DSPAM components.
>>
>>Thanks in advance!
>>
>>
>>--
>>Орхан Касумов
>>
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