-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On 10/14/2013 6:23 PM, Franck Martin wrote:
> If you want to block spam on IPv6, then you can start by rejecting > connections to SMTP from any IPv6 that do not have a PTR. No need to > analyze the format of the PTR. > > It is in several recommendations that a sending email IP must have a PTR. > > That ISPs will not do a PTR on all IPv6 but only on static IPv6, improves > the spam blocking feature above. No need to maintain list of dynamic IP > space... > ...and Franck would know -- he rejects all mail from MTAs which do not. :-) - - ferg -----BEGIN PGP SIGNATURE----- Version: PGP Desktop 10.2.0 (Build 2317) Charset: utf-8 wj8DBQFSXJwqq1pz9mNUZTMRAkJKAKCGLnO9qEGXv5LIKxCBiZhwf7HwHQCggksf Fn3GhVzeKyHG5cSc7y5GXJw= =Gtw1 -----END PGP SIGNATURE----- -- Paul Ferguson Vice President, Threat Intelligence Internet Identity, Tacoma, Washington USA IID --> "Connect and Collaborate" --> www.internetidentity.com
