On Thu, 2005-05-19 at 10:37 +0200, Philipp Morger wrote:
An F for effort... ;)
--($:~)-- dig newsletter.sunrise.ch TXT +short "spf2.0/pra ip4:146.82.220.0/23 ip4:198.31.62.0/23 ip4:209.47.11.0/24 ip4:62.221.20.0/24 ip4:65.167.67.192/27 ip4:216.73.80.0/20 ~all" "v=spf1 ip4:146.82.220.0/23 ip4:198.31.62.0/23 ip4:209.47.11.0/24 ip4:62.221.20.0/24 ip4:65.167.67.192/27 ip4:216.73.80.0/20 ~all"
Indeed the larger "Advertisers" have already embraced this great technology called SPF so that they won't be filtered:
inetnum: 62.221.20.0 - 62.221.20.255 netname: DOUBLECLICK-IE descr: Double Click, Ireland
Double Click DOUBLECLICK7-62-28 (NET-198-31-62-0-1) 198.31.62.0 - 198.31.63.255 Double Click MEDSYN7-UUU1 (NET-209-47-11-0-1) 209.47.11.0 - 209.47.11.255 Double Click FON-110147993679739 (NET-65-167-64-0-1) 65.167.64.0 - 65.167.67.255 NetRange: 216.73.80.0 - 216.73.95.255 CIDR: 216.73.80.0/20 NetName: DOUBLECLICK-NET
network:ID:4632.146.82.220.0/23 network:Auth-Area:net.146.82.0.0-16 network:Network-Name:1682.1682.DOCLI
This thus only 'protects' nobody sending a faked newsletter (read: advertisement) mails from doublyclick... very useful.
Greets, Jeroen