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.
For google, why not get it from the source itself?
Example:
# dig txt _spf.google.com | grep spf
; <<>> DiG 9.3.4 <<>> txt _spf.google.com
;_spf.google.com. IN TXT
_spf.google.com. 187 IN TXT "v=spf1
ip4:216.239.32.0/19 ip4:64.233.160.0/19 ip4:66.249.80.0/20
ip4:72.14.192.0/18 ip4:209.85.128.0/17 ip4:66.102.0.0/20
ip4:74.125.0.0/16 ip4:64.18.0.0/20 ip4:207.126.144.0/20 ?all"
