[Asrg] Round 2 of the DNSBL BCP - "collateral damage"

Justin Mason jm at jmason.org
Sat Apr 5 01:47:48 PDT 2008


Matt Sergeant writes:
> On 4-Apr-08, at 5:47 PM, Steve Atkins wrote:
> >
> > On Apr 4, 2008, at 2:42 PM, Matt Sergeant wrote:
> >> On 4-Apr-08, at 5:36 PM, Steve Atkins wrote:
> >>> It's the eicar problem.
> >>
> >> Yes. Note that years ago I created GTUBE for this exact problem for
> >> content filters. Unfortunately to this day I think only SpamAssassin
> >> (and MessageLabs filters) detects it:
> >>
> >> http://en.wikipedia.org/wiki/GTUBE
> >
> > Yup, GTUBE is perfect for content filters, but I'd be nervous about
> > putting it into a DNS query, as some of the characters are unfriendly
> > to naive stub resolvers.
> 
> Yeah sorry I wasn't clear - I wasn't recommend it for use as a DNSBL  
> test.
> 
> I like John's suggestion of dnsbl.test.

+1, me too fwiw.

(although content filters would have to be modified to recognise URLs in
the .test TLD, if it's suitable for use for that purpose -- SpamAssassin
doesn't, at least...)

--j.


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