Jeff Simmons wrote:
So I just set up a nice spamd for a client, and then watched Google's
Postini try to resend a single email message from just about every IP
they own.
Here is a little script that would help you to create your own lists. I
use it and run it in cronjob once a month. Then it plug right into pf
and update my table for spf records. Just modify it for your own needs
and add new spf source as you see fit.
I used this script that I found long ago and it works very well for this
purpose.
Best,
Daniel
====================
#!/bin/sh
FILE=spamd-spf.txt
rm -f $FILE
touch $FILE
for domain in \
aol.com \
apple.com \
amazon.com \
gmx.net \
_spf.google.com \
spf-a.hotmail.com \
spf-b.hotmail.com \
spf-c.hotmail.com \
spf-d.hotmail.com \
_spf-a.microsoft.com \
_spf-b.microsoft.com \
_spf-c.microsoft.com \
mynethost.com \
spf.postini.com
do
echo \#$domain >> $FILE;
dig $domain TXT +short | tr "\ " "\n" | grep ^ip4: | cut -d: -f2 >> $FILE;
done
