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i’ll send you some samples from .nl off list.
Best,
Maarten
--
Maarten Wullink | Research Engineer
SIDN | Meander 501 | 6825 MD | Postbus 5022 | 6802 EA | ARNHEM
T +31 (0)26 352 55 45 | M +31 (0)6 21 26 87 55
[email protected] | www.sidn.nl
pgp key: http://pgp.mit.edu/pks/lookup?op=get&search=0x4F2A495C4B1BF08B
> On 30 Mar 2020, at 11:18, Petr Špaček <[email protected]> wrote:
>
> Hello everyone,
>
> while debugging some resolution problems we have notices really weird
> queries, seemingly related to e-mail delivery. This is query list for domain
> truckinsurancekentucky.com:
>
> mx1.mx1.mx1.mx1.mx1.mx2.mx1.mx2.mx1.mta-sts.mx1.mx1.mx2.mx2.mta-sts.mx1.mx1.truckinsurancekentucky.com.
> AAAA
>
> mx1.mx1.mx1.mx2.mx1.mx2.mx1.mx2.mx2.mx1.mx1.mx1.mx2.mx2.mx2.mx1.mx2.mx2.truckinsurancekentucky.com.
> A
>
> mx1.mx2.mx1.mx1.mx1.mx1.mx1.mx2.mx1.mx1.mta-sts.mx1.mx2.mx2.mx2.mx1.truckinsurancekentucky.com.
> A
>
> mx1.mx2.mx1.mx1.mx2.mx1.mx1.mx2.mx1.mx1.mx1.mx1.mx2.mx1.mx2.mta-sts.mx1.truckinsurancekentucky.com.
> NS
>
> mx1.mx2.mx1.mx2.mx2.mx1.mx1.mx1.mx1.mx2.mta-sts.mx1.mx1.mx2.mta-sts.mx2.mx2.truckinsurancekentucky.com.
> AAAA
>
> mx1.mx2.mx2.mx1.mx2.mx2.mx1.mx2.mx2.mx2.mx2.mx1.mx2.mx1.mx2.mx1.mx1.mx1.truckinsurancekentucky.com.
> A
>
> mx2.mx1.mx1.mx2.mx1.mx1.mx1.mx2.mx2.mx2.mx2.mta-sts.mx1.mx2.mta-sts.mx1.mx2.mx1.truckinsurancekentucky.com.
> NS
>
> mx2.mx1.mx2.mx1.mx1.mx2.mx1.mx2.mx1.mx2.mx1.mx1.mx1.mx1.mta-sts.mx1.mx2.mx2.truckinsurancekentucky.com.
> NS
>
> mx2.mx2.mx1.mx1.mx1.mx2.mx2.mx2.mx1.mx2.mx1.mx1.mx1.mta-sts.mx1.mx2.truckinsurancekentucky.com.
> A
>
> mx2.mx2.mx1.mx1.mx2.mx1.mx2.mx1.mx1.mta-sts.mx1.mx2.mx1.mx1.mta-sts.mx2.mx2.truckinsurancekentucky.com.
> AAAA
>
> mx2.mx2.mx1.mx2.mx1.mx1.mx1.mx2.mx1.mx1.mx1.mx1.mx1.truckinsurancekentucky.com.
> AAAA
>
> mx2.mx2.mx1.mx2.mx1.mx1.mx1.mx2.mx2.mx2.mx1.mx1.mx1.mta-sts.mx1.mx2.mx2.mx2.truckinsurancekentucky.com.
> A
>
> Domain truckinsurancekentucky.com is not the only one with this weird
> behavior. Does anyone have an idea what is causing this?
>
> (We have access only to anonymized data so we are unable to pinpoint
> responsible client.)
>
> --
> Petr Špaček @ CZ.NIC
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> https://lists.dns-oarc.net/mailman/listinfo/dns-operations
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