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Date:      Mon, 16 Feb 2004 08:22:46 -0600
From:      Jorge Biquez <jbiquez@icsmx.com>
To:        freebsd-questions@freebsd.org
Subject:   Re: spam removal
Message-ID:  <5.1.0.14.2.20040216081947.021bc190@mail.icsmx.com>
In-Reply-To: <20040216041531.B95778@admin1.mdc.net>
References:  <20040216091316.98506.qmail@web9602.mail.yahoo.com> <20040216091316.98506.qmail@web9602.mail.yahoo.com>

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At 04:18 a.m. 16/02/04 -0500, you wrote:


>On Mon, 16 Feb 2004, Olga Zenkova wrote:
>
> > Hi!
> > Some of my FreeBSD users get to much spam daily. What
> > tools can anybody advice to stop it? Now I have
> > sendmail with access.db, which is already used but I
> > think it is not very effective at all. May be other
> > mail daemon or some additional tools for sendmail?
> >
>
>Try some blacklists with sendmail.
>
>FEATURE(`dnsbl', `sbl.spamhaus.org', `"550 Mail from " $`'&{client_addr} "
>refused - see http://www.spamhaus.org/sbl/"')dnl
>FEATURE(`dnsbl', `list.dsbl.org', `"550 Mail from " $`'&{client_addr} "
>refused - see http://dsbl.org/"')dnl
>FEATURE(`dnsbl',`bl.spamcop.net',`"550 Mail from " $`'&{client_addr} "
>refused - see http://spamcop.net/"')dnl
>FEATURE(`dnsbl', `cbl.abuseat.org',`"550 Mail from " $`'&{client_addr} "
>refused - see http://cbl.abuseat.org/'")dnl
>FEATURE(`dnsbl', `psbl.surriel.com',`"550 Mail from " $`'&{client_addr} "
>refused - see http://psbl.surriel.com/'")dnl
>FEATURE(`dnsbl', `dnsbl.sorbs.net', `"550 Mail from " $`'&{client_addr} "
>refused - see http://dnsbl.sorbs.net/'")dnl
>
>
>you will smile with glee seeing each connection blocked.
>oh yea do research into each one. i dont use them all atm.
>
>also check spamassassin, razor2, dcc.
>procmail too. or maildrop.
>amavisd and the uvscan binary.
>
>i wish i could explain more, but understand how to set
>up all that crap and you could sell spam/virus solutions.
>
>m
>
> > Thanks,
> > Olga
> >
> > __________

Hello all.

I start using blacklists also with sendmail. The spam reduced A LOT . I 
just wanted to ask where exactly do I have to put the rule in the 
configuration file. Since I put the rule when my users send email their 
mail client takes too long to send the email. If I take out the rules the 
mail is sent immediately (testes with outlook, eudora).

Thanks in advance.

JB




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