Date: Wed, 21 Jan 1998 19:59:06 -0800 (PST) From: "Jonathan M. Bresler" <jmb> To: fbsdlist@federation.addy.com (Cliff Addy) Cc: questions@FreeBSD.ORG Subject: Re: Preventing spam relaying Message-ID: <199801220359.TAA06643@hub.freebsd.org> In-Reply-To: <Pine.BSF.3.95q.980121211850.1742A-100000@federation.addy.com> from Cliff Addy at "Jan 21, 98 09:24:08 pm"
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put all the machines that are allowed to relay (those running
netscape) in the "R" class.......
list them in /etc/sendmail.cf.relays
jmb
Cliff Addy wrote:
> OK, I FINALLY got the relay prevention stuff to reject relaying with :
>
> #LOCAL_CONFIG
> FR-o /etc/sendmail.cf.relays
>
> #LOCAL_RULESETS
> Scheck_rcpt
> # anything terminating locally is ok
> R< $+ @ $=w > $@ OK
> R< $+ @ $=R > $@ OK
>
> # anything originating locally is ok
> R$* $: $(dequote "" $&{client_name} $)
> R$=w $@ OK
> R$=R $@ OK
> R$@ $@ OK
>
> # anything else is bogus
> R$* $#error $: "550 Relaying Denied"
>
> However, it's too good now. I need OUR clients to be able to send email
> and it's getting blocked. I didn't realize that Netscape talks directly
> to the sendmail port, I just assumed it used the POP server. Is there any
> way I can work around this? I'm tired of abusive email from people who've
> been spammed and seeing hundreds of messages queued up on our servers, but
> have to let our clients send email. Can NS be configured to send email
> through the pop server?
>
> Very tiredly yours,
>
> Cliff
>
>
>
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