On Wed, 14 Feb 2007 09:50:50 +0000 , "Peter Bowyer" <peter@???> wrote:
>On 14/02/07, Oliver Howe <oliverj@???> wrote:
>>
>>
>> In the DNS black lists section is it possible to rewrite the message subject to say something like
>>
>> [SPAM] $subject
>>
>> if the sending host is found in a dnslist like spamhaus?
>> where $subject is the original message subject
>
>Yes - use add_header to add a 'X-New-Subject: [SPAM] $subject' header,
>and replace Subject with X-New-Subject in a router. You'll have to do
>this in the DATA acl.
ok -thanks for helping.
>
>> I'm asking as gmail.com has found itself on one such list,
>
>What list, as a matter of interest?
PERM_FAILURE: SMTP Error (state 9): 550-rejected because
64.233.184.225 is in a black list at dnsbl.sorbs.net 550 Spam Received Recently See:
http://www.sorbs.net/lookup.shtml?64.233.184.225
well, its google, not gmail.
also, i'm aware sorbs can be a tad heavy handed so i'm thinking i shouldnt block based on them alone, but rather add the [SPAM] header then let my users filter it to a sub-foldr automatically
and they can decide what to do with it. some of them, believe it or not, actually want to receive all such messages.
>
>> currently I deny all messages. I'd rather not just add an X-Warning header only.
>
>Unless you're content to outsource the whole of your blocking policy
>to perhaps multiple third-parties, it's sensible to have a whitelist
>facility for just this kind of circumstance, which will bypass one or
>more DNSBL checks for a list of sending IPs, or SPF-pass or
>Domainkeys-pass sending domains.
i'll look into it. thanks again.
>
>Peter
>
>
>--
>Peter Bowyer
>Email: peter@???
>
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Oliver Howe
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