> > On Tue, 7 Jan 2003, Keith Powell wrote:
> > I once read that KMail could be filtered to send messages straight into
> > the "Black Hole" which is /dev/null. Ideal for spam!
> >
> > Has anyone tried it, and got it to work? If so, how do you do it, please?
> > I can't work out how to do it.
> >
> > This is only for experimenting with. I wouldn't dream of using it for any
> > of the OT threads - but on second thoughts.... ;-)
> >
> > Cheers
> >
> > Keith
>
> Les Henderson replied:
> Most people that I know who have done such things have used a procmail
> rule set to accomplish this and have not used the MTA for such things. I
> personally would hesitate to do such things since I've never heard of a
> rule set for spam that was 100% effective at only filtering spam. Most
> people that I know who do such things will filter spam to a spam folder
> and quickly look through the messages occaisionally before deleting
> them to make sure that they only delete garbage. They will only filter
> specific addresses or domains to /dev/null, such as anything coming from
> the microsoft domains...
> And Stephen Kuhn replied:
> As far as using "the black hole" - I make use of it via /etc/procmailrc
> - this is a processor for mail which can be used for sendmail, postfix,
> qmail - it contains "rules" or rather "recipes" for diverting stuff
> hither thither and yon...here's a quick clip from mine showing that
> garbage is sent to "hell":
> ## procmailrc recipes
> PATH=/bin:/usr/bin
> :0
> * ^From.*[EMAIL PROTECTED]
> * ^Subject:.*
> {
> :0
> /dev/null
> }
> :0
> * ^From.*[EMAIL PROTECTED]
> * ^Subject:.*
> {
> :0
> /dev/null
> }
> :0
> * ^From.*@tyrell.net
> * ^Subject:.*
> {
> :0
> /dev/null
> }
> :0
> * ^From.*@*.co.kr
> * ^Subject:.*
> {
> :0
> /dev/null
> }
>
> :0
> * ^(X-Spanska|From.*hahaha)
> {
> LOG="VIRUS "
> :0
> /dev/null
> }
>
> :0 B
> * > 100000
> * mDmcOaA5pDmoOaw5sDnAOeA56DnsOfA59Dn4Ofw5ADoEOgg6HDo8OkQ6SD
> {
> LOG="SirCam "
> :0
> /dev/null
> }
> # Attachment with an unzipped Win32 executable - KLEZ
> :0
> * Content-Type:.*multipart/alternative
> * BD ??
> AAAMFAAA9AgAAPYlAAAKAgAATVpQAAIAAAAEAA8A//8AALgAAAAAAAAAQAAaAKgBAAC6EAAO
> {
> LOG="KLEZ "
> :0
> /dev/null
> }
>
> :0 HB
> * > 54000
> * ^Content-Type: audio/x-(wav|midi);
> {
> LOG="Klez "
> :0
> /dev/null
> }
>
---------------------------------------------------------------------------------------------------
>
> Lots of things can be sent to /dev/null - it's just a matter of how you
> utilise this wonderful tool...
Thank you both for your replies and the information. I appreciate the trouble
you went to to give the information.
I will experiment with procmail and see what a mess I get into!
Cheers
Keith
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