Re: [apps-discuss] A greylisting question

["John Levine" <[e-mail]>]

>There will, at least, be some differences and possibly many.  But since we have 
>no experience with this stuff in that space, we can't be sure.

Yoo hoo.  I've been greylisting IPv6 for a while.  What I can mostly
say is that the small number of IPv6 MTAs I see retry just like IPv4
MTAs.  I don't think I've seen any bots except maybe one or two that
went through a v4-v6 gateway of some sort without intending to.

At this point, most of the v6 mail I see comes from a handful of
senders who do it because it's cool (notably NANOG and IETF), or
they're testing it.  Most of the spam comes from insecure web hosts
who are dual homed.

So I agree that we have little to say about IPv6 at this point beyond
nothing that the principle is the same.

-- 
Regards,
John Levine, [e-mail], Primary Perpetrator of "The Internet for Dummies",
Please consider the environment before reading this e-mail. http://jl.ly