Our first inbound email via IPv6

Sun Jun 10 14:42:57 UTC 2012

"Livingood, Jason" <Jason_Livingood at cable.comcast.com> writes:

> In preparation for the World IPv6 Launch, inbound (SMTP) email to the
> comcast.net domain was IPv6-enabled today, June 5, 2012, at 9:34 UTC.
> Roughly one minute later, at 9:35:30 UTC we received our first
>  inbound email over IPv6 from 2001:4ba0:fff4:1c::2. That first bit of mail
> was spam, and was caught by our Cloudmark messaging anti-abuse platform
> (the sender attempted a range of standard spam tactics in subsequent
> connections). ...

rim shot:

i suggest that the e-mail industry consider a two-level approach to
rejecting ipv6 spam based on source address.

for more information see:

http://www.circleid.com/posts/20110607_two_stage_filtering_for_ipv6_electronic_mail/

paul