Jose Borges Ferreira:
> On Mon, Sep 15, 2014 at 10:24 PM, Wietse Venema <wie...@porcupine.org> wrote:
> > When you follow the include: directives you get lists of net/mask
> > forms that are easy to convert to postscreen.
> >
> >     $ host -t txt spf1.amazon.com | tr ' ' '\12' | sed -n '/^ip.:/{
> >         s/^ip.:\(.*\)/\1 permit/
> >         p
> >     }' | sort -u
> >
> > I thought there would be a nice script that converts SPF net/mask
> > lists to postscreen access lists but I could not quickly find one.
> >
> I also searched and found none.
> 
> Usually I use https://dmarcian.com/spf-survey/amazon.com ( see last
> section : Record flattening ) for manual lookups.
> It's also nice because it shows record errors and warning  like
> invalid ( or not so valid ) CIDR blocks or too many DNS lookups (
> https://dmarcian.com/spf-survey/tam.com.br )

I'm working on a Perl script that parses relevant parts of SPF
syntax, and that's about 80% done.

        Wietse 

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