Date: Sun, 22 Aug 2010 10:00:49 +0200 From: Stefan Bethke <stb@lassitu.de> To: John Nielsen <lists@jnielsen.net> Cc: gshapiro@freebsd.org, FreeBSD Stable <freebsd-stable@freebsd.org> Subject: Re: Apparent dnsbl bug in Sendmail or m4 Message-ID: <CD37C0F6-F202-4941-A740-BF17358270A5@lassitu.de> In-Reply-To: <20100822031045.sl4d10544k0s80kw@newwebmail.jnielsen.net> References: <20100822031045.sl4d10544k0s80kw@newwebmail.jnielsen.net>
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Am 22.08.2010 um 09:10 schrieb John Nielsen:
> FEATURE(dnsbl, `bl.spamcop.net', `"550 Mail from " $&{client_addr} " rejected, see http://spamcop.net/bl.shtml?" $&{client_addr}')
>
> On the FreeBSD 4.x server, this is the corresponding section in the .cf file:
>
> # DNS based IP address spam list bl.spamcop.net
> R$* $: $&{client_addr}
> R$-.$-.$-.$- $: <?> $(dnsbl $4.$3.$2.$1.bl.spamcop.net. $: OK $)
> R<?>OK $: OKSOFAR
> R<?>$+<TMP> $: TMPOK
> R<?>$+ $#error $@ 5.7.1 $: "550 Mail from " $&{client_addr} " rejected, s
> ee http://spamcop.net/bl.shtml?" $&{client_addr}
>
> On the FreeBSD 8.x server, this is the corresponding section:
>
> # DNS based IP address spam list bl.spamcop.net
> R$* $: $&{client_addr}
> R$-.$-.$-.$- $: <?> $(dnsbl $4.$3.$2.$1.bl.spamcop.net. $: OK $)
> R<?>OK $: OKSOFAR
> R<?>$+<TMP> $: TMPOK
I've got:
FEATURE(`dnsbl', `ix.dnsbl.manitu.net',`"550 Rejected - see http://www.heise.de/ix/nixspam/nixspam.blackmatches"')dnl
in my .mc, and get this in my .cf:
# DNS based IP address spam list ix.dnsbl.manitu.net
R$* $: $&{client_addr}
R$-.$-.$-.$- $: <?> $(dnsbl $4.$3.$2.$1.ix.dnsbl.manitu.net. $: OK $)
R<?>OK $: OKSOFAR
R<?>$+<TMP> $: TMPOK
R<?>$+ $#error $@ 5.7.1 $: "550 Rejected - see http://www.heise.de/ix/nixspam/nixspam.blackmatches"
This is on 8.1 from July 15th. I just ran make all again, and it stays the same.
Fired up my VMware image with a three-day old -stable, and put both mine and yours in, and yours is missing the error line.
I experimented a bit, and it appears that the macro does not like having the $&{client_addr} at the very end of the parameter. If I add "", it starts working. No idea how or why, but there you go :-)
FEATURE(`dnsbl', `bl.spamcop.net', `"550 " $&{client_addr} "foo" $&{client_addr} ""')dnl
Stefan
--
Stefan Bethke <stb@lassitu.de> Fon +49 151 14070811
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