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发信人: lenx (冷·枫), 信区: Linux
标  题: prevent sendmail abuse
发信站: BBS 水木清华站 (Tue Jun 17 21:42:21 1997)

From: andrew@adaviel.isdn.ubc.ca (Andrew Daviel)
Subject: Re: prevent sendmail abuse ?
Date: 5 Apr 1997 08:33:19 GMT
Organization: TRIUMF

Russell Nelson (nelson@crynwr.com) wrote:
∶ andrew@andrew.triumf.ca (Andrew Daviel) writes:

∶ > How can I stop the following kind of abuse in sendmail?

∶ Switch to qmail.  http://www.qmail.org.

Also found patch in www.sendmail.org, needs sendmail 8.8.5

Scheck_rcpt
R< $+ @ $+ @ $=w >      $#error $: "550 @ Relaying denied for " $2

R< $+ % $+ @ $=w >      $#error $: "550 % Relaying denied for " $2

# anything terminating locally is ok
R< $+ @ $=w>    $@ OK

# anything originating locally is ok
R$*     $: $(dequote "" $&{client_name} $)
R$=w    $@ OK
R$@     $@ OK

# anything else is bogus
R$*     $#error $: "550 Relaying Denied"

(LHS <tab> RHS ...)

Andrew

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