Bogofilter and postfix (was: Bogofilter and Sendmail)

[Matthias Andree]

On Thu, 04 Dec 2003, Bill Wohler wrote:

> I'm currently calling bogofilter with procmail. However, now that the
> @#$!@!# spammers have somehow discovered all of the mailing lists on my
> machine, I must now pass mail through bogofilter before it goes to the
> mailing lists. Using my own bogofilter DB is appropriate since I'm on
> all of the lists and therefore has been trained with the traffic on
> those lists.
> 
> It just occurred to me that I could change an alias such as:
> 
>   list:        "|/var/lib/mailman/mail/wrapper post list"
> 
> to
> 
>   list:        "|/usr/local/sbin/bogowrapper post list"
> 
> Where bogowrapper looks something like:
> 
>     umask 077
>     bogofilter -c /home/wohler/.bogofilter.cf \
>                -d /home/wohler/.bogofilter -3 -e -p > /tmp/bogowrapper$$
>     if `grep -q X-Bogosity: No /tmp/bogowrapper$$`; then

That needs to be "X-Bogosity: No" (with quote marks), to avoid "No: no
such file or directory" from grep.

> 	/var/lib/mailman/mail/wrapper $@ < /tmp/bogowrapper$$

And here, too, use "$@" not bare $@ although it looks OK in this sample.

>     else
> 	cat /tmp/bogowrapper$$ >> /usr/local/spool/spam
>     fi
>     rm /tmp/bogowrapper$$
> 
> That solution would be independent of the MTA. Is anyone's hackmeter
> going off?

Sorta. What in case of trouble? The script will just continue when you
actually want it to "exit 75" so Postfix can defer the mail and retry
later.