Re: Sendmail: How does one blacklist annoying spammers?

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Ed Greshko wrote:

>> Are you saying you can implement spamhaus by a line in sendmail.mc ?
>> If so, what is the line?
> 
> FEATURE(`dnsbl', `zen.spamhaus.org', `"550 Mail from " $`'&{client_addr}
> " refused - see http://www.spamhaus.org/";')
> 
> is specific to spamhaus.
> 
> Typing "spamhaus sendmail configuration" in google will help too....

Thanks for the advice.
I did google as you suggested,
but found that most of the responses seemed to suggest
that one had to (or should) make a whole plethora of changes.

The simplest, and most lucid, advice I found was in
<http://www.joeldare.com/wiki/linux:adding_the_spamhouse_sbl_and_xbl_to_sendmail>
where the author suggested simply adding the line

FEATURE(`dnsbl',`sbl-xbl.spamhaus.org')dnl

to /etc/mail/sendmail.mc
running "make -C /etc/mail" and "service sendmail restart".

Assuming this is correct, and is an effective safeguard,
it seems a little surprising to me that it is not suggested
somewhere in the Fedora-13 documentation.
(Or maybe it is?)

I actually find SpamAssassin by itself is quite adequate,
reducing spam to perhaps 5% of my email.
But if adding SpamHaus improves even this
I am more than willing to try it.


-- 
Timothy Murphy  
e-mail: gayleard /at/ eircom.net
tel: +353-86-2336090, +353-1-2842366
s-mail: School of Mathematics, Trinity College, Dublin 2, Ireland

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