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Re: HOWTO: track SPF requests to see who says to be you

2004-12-06 02:29:39
On Wed, Dec 01, 2004 at 10:24:51AM +0100,
 Stephane Bortzmeyer <bortzmeyer(_at_)nic(_dot_)fr> wrote 
 a message of 256 lines which said:

I have choosen the following string to make the actual DNS request:

%{i}._.%{h}._.%{s}._.%{r}.spf-tracker.example.net 

Most SPF checkers do not fill in %{r} but all the other fields are OK
except that I received the following query:

30-Nov-2004 11:30:46.685 queries: client 216.27.178.28#2663: query: 
{i}._.{h}._.{s}._.{r}.spf-tracker.generic-nic.net IN A -E

216.27.178.28 is acme.com and they make a SPF milter for sendmail
(http://www.acme.com/software/spfmilter/) which seems quite broken :-(
If such implementations become common, "exists:" could become useless.


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