Re: [Exim] Relay Message Filtering?

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Author: Jeffrey Goldberg
Date:  
To: J Yunke
CC: exim-users
Subject: Re: [Exim] Relay Message Filtering?
On May 5, 2000 J Yunke <yunke@???> wrote:

> How can I force exim to bounce the message if it matches the system-wide
> filter?


This has been discussed (with several filters suggested) on this list
extensively over the past few days. Anyone want to add a FAQ to the exim
website?

(1) create your filter file. It will basically be

    ...
    if (some condition) then
       fail text "you sent what looks like a virus"
    endif
    ...


    (see recent postings for example filters.  Note that what is
     appropriate for one site may not be for another)


(2) Test is using -bF option.  Note that a buglet (or infalicity) in the
    way that reports can give you misleading statements that a message
    caught by the filter "Will be delivered normally".  If you see the
    "fail" text, then the filter will fail the message.


    be sure to test with negatives as well as positives.


(3) Put

    message_filter = /path/to/filter-file


    in the main part of configure


(4) test anything, eg, exim -bt your@???
    just to see that you have a valid configure file and didn't introduce
    a typo


(5) HUP or restart listening daemon.

-j

-- 
Jeffrey Goldberg                +44 (0)1234 750 111 x 2826
 Cranfield Computer Centre      FAX         751 814
 J.Goldberg@???     http://WWW.Cranfield.ac.uk/public/cc/cc047/
Relativism is the triumph of authority over truth, convention over justice.