I’m not sure if I’m doing something wrong, but I don’t get the same result.
I don’t encounter any IP address from a reserved address space right at the
moment.

Regards,
Rytis

On Thu 7. Nov 2019 at 20:24, David McCabe via mailop <mailop@mailop.org>
wrote:

> Anybody have any contacts at Yahoo?
>
> One of their MX records points to an IP address defined in RFC 5737 as not
> routable:
>
> ~]$ dig +short mx yahoo.com
> 1 mta6.am0.yahoodns.net.
> 1 mta5.am0.yahoodns.net.
> 1 mta7.am0.yahoodns.net.
>
> ~]$ dig +short a  mta5.am0.yahoodns.net
> 192.0.2.8
>
>
> --
> David McCabe           McGill University NCS        Sent from laptop
> Outlook
>
> In a relatively short time we've taken a system built to resist
> destruction by nuclear weapons and made it vulnerable to toasters.
>             --- Jeff Jarmoc, October 21, 2016
>
>
>
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