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On Fri, 2018-06-08 at 17:21 +0200, Stefano Bagnara wrote:
> On Fri, 8 Jun 2018 at 16:47, Jim Popovitch via mailop <mailop@mailop.
> org> wrote:
> > On Fri, 2018-06-08 at 10:27 -0400, Rob McEwen wrote:
> > > there has to be some justified level of "collateral damage" these
> > > days, due to the very high frequency of hijacked accounts,
> > > hijacked
> > > websites, and spamming ESP customers (from ESP that are overall
> > > good).
> > 
> > Rather than dumping a piece of technology (ipv6), dump the ESPs
> > that
> > enable cheap sending. (Win! Win!).  If those ESP customers had to
> > build
> > out their own infrastructure then they would take better care of
> > it...
> > regardless of ipv4, ipv6, ipv8, etc.
> 
> If you really think that rejecting email from senders that want to
> optimize their costs is a good strategy....
> Well, IPv6 is simply a way to make email sending cheaper. So not
> supporting Ipv6 is an effective way to dump cheap sending.
> 
> I guess anyone with a good corpus can easily check that "inexpensive
> ESP" are not more spammy than "fortune 500 ESP".
> 
> Someone proposed to simply add some cost to every SMTP transaction as
> a way to stop the spam, some blacklist offer paid unlisting services,
> too... but spammers sometimes have more money to send email than the
> average user IMHO.

Fair points!  My comment was mostly tongue-in-cheek, but there is
something to be said about how relatively easy it is to send bulk spam.

- -Jim P.
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