Re: IPv6 mail, was Let's try to be productive...

On Wed, Jan 08, 2014 at 04:20:48PM +0000, Richard Clayton wrote:
> If IPv6 email really takes off (and that certainly won't be soon (IMO)
> apart from some special cases), then we might very well see ISPs and/or
> the really big mail handlers (Gmail, Yahoo &c) using one IPv6 address
> per account ...
> 
> ... this will allow people to block (or perhaps whitelist) specific
> people who are using mass platforms without having to agonise over the
> pain of blocking "the whole of gmail/whatever"

Apart from being able to drop the connection slightly earlier during the SMTP transaction, does this give you a significant advantage over just blacklisting (or whitelisting) individual email addresses? Something which I would think doesn't really scale.

Martijn.

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