Home IMAP server

[Dotan Cohen]

On 28/12/06, Todd Slater <dontodd at gmail.com> wrote:
> > 5) If I continue using bogofilter in Kmail, it will only filter the
> > mail on that machine. Or, is there a way to have bogofilter in the
> > IMAP server itself? That way it will learn from when I tag ham/spam on
> > both machines.
>
> Yes, you'd want bogofilter to run on the same machine as your IMAP
> server so that no matter what machine you access your mail from, mail
> gets passed through bogofilter. I've got a server set up like this,
> and the process is that postfix receives the mail and hands it off to
> procmail, which sends it through bogofilter and then delivers it to
> the local mailboxes. All training can be done via the mail client, by
> dragging and dropping messages to the appropriate folder.
>
> I set up bogofilter and folders like this:
>
> a .Junk folder, where mail identified as spam goes.
>
> a .MakeJunk folder, where misclassified ham goes (bogofilter thinks
> it's ham but it's really spam)
>
> a .MakeGood folder, where misclassified spam goes (bogofilter thinks
> it's spam but it's really ham)
>
> Since bogofilter uses tristate classification now, I have approached
> the unsure messages in one of two ways, either
>
> 1. having bogofilter put ???UNSURE??? in the subject line so I'll know
> it's unsure, or
>
> 2. creating an .Unsure folder where procmail can put those messages.
>
> I then run scripts via cron on the server that process mail in
> .MakeJunk, .MakeGood, and .Unsure. These basically run every couple of
> hours and run the mails through bogofilter with the appropriate
> switches for training. I only keep one week worth of spam in my Junk
> folder, anything older than 7 days gets moved out of my maildir and to
> another folder outside of my mail root. I tar.gz that directory every
> week or so to save space.
>
> Since the vast majority of my unsures are actually spam, I have a
> script that automatically classifies those mails older than 7 days as
> junk and move them to my spam archive.
>
> Let me know if you need details on my server setup, it's on Ubuntu, too.
>
> Todd
>

Todd, that looks like the perfect setup, and that's exactly what I'm
going to do. Could you please tell me exactly what programs you are
using, so that I can start googling. I see postfix, procmail,
bogofilter, and cron. What IMAP server aer you using?

ALso, please tell me if I'm understanding this correctly. Postfix
connects to a remote POP3 machine and pulls the mail down. It then
passes the mail to procmail, which runs bogofilter and based on
bogofilter's response, procmail puts the mail in the appropriate
folder. The IMAP server then has access to it, and can serve email to
your client (Tbird, Kmail, etc.). Now, when you get a spam in ham, or
vice versa, you put it in a special spam->ham or ham->spam folder so
that bogofilter can learn from it. Every so often, cron comes along,
parses those special folders, and send the email to bogofilter so he
can learn. Is that what's happening?

Thank you very much for your assistance.

Dotan Cohen

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