[exim] filtering by aliases

Etusivu
Poista viesti
Vastaa
Lähettäjä: Leonardo Boselli
Päiväys:  
Vastaanottaja: exim-users
Aihe: [exim] filtering by aliases
My server is suffering from spam. each user can choose to filter or not
and personalize spamassassin in his .procmailrc file.
This is ok for "normal"messages, but when a message is sent to group
of people (list of up to 50 people) having a large number of SA running
saturate completely the server , delaying incoming mail at best, but
timing out local clients that just want to read email via imap.
Such large lists are usually the effect of something in /etc/aliases or my
mailman.
I have in exim.conf:
#
system_aliasgroup:
driver = redirect
allow_defer
allow_fail
data = ${lookup{$local_part}lsearch{/etc/aliasesgroup}}
file_transport = address_file
pipe_transport = address_pipe
retry_use_local_part
#and
list_director:
driver = accept
require_files = /var/lib/mailman/lists/${lc::$local_part}/config.pck
retry_use_local_part
transport = list_transport
#

What do i want ?
That all message that are run throught these directors are scanned by
spamassassin with a standard configuration once for all, before being
passed to individual deliveries or to the list, to add a spacial header so
the rule
:0fw
| /usr/bin/spamassassin

invoked by .procmail is not run by each user.

How to pass all messages trought these two filter (and only these two)
and add an head "X-listscanned: monthlyrule"
--
Leonardo Boselli
Nucleo Informatico e Telematico del Dipartimento Ingegneria Civile
Universita` di Firenze , V. S. Marta 3 - I-50139 Firenze
tel +39 0554796431 cell +39 3488605348 fax +39 055495333
http://www.dicea.unifi.it/~leo