`mail.robertkretzer.com`

DNSSEC	⚠️ Not signed
A	88.99.227.96^{🇩🇪 Hetzner88.99.0.0/16 HETZNER-DC}
		PTR	`delta.gra.de`
MX	`delta.gra.de` ⭐
		A	2a01:4f8:c2c:81f1::1^{🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK}
			PTR	`delta.gra.de`
		A	88.99.227.96^{🇩🇪 Hetzner88.99.0.0/16 HETZNER-DC}
			PTR	`delta.gra.de`

`robertkretzer.com`

	DNSSEC	⚠️ Not signed
	A	88.99.227.96^{🇩🇪 Hetzner88.99.0.0/16 HETZNER-DC}
	NS	`ns1.gra.de` ⭐
	NS	`ns2.gra.de`
	MX	`delta.gra.de` ⭐
	SOA	`ns1.gra.de`postmaster@gra.de 2022-04-11 #0

Previously MX for

robertkretzer.com

Same first word

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mail.s3.amazonaws.com

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DNS History

4 records (2 active, 2 former)

●MXdelta.gra.de2026-05-13 → 2026-05-13 · 3 obs

○ 2016-04-18 22:42:34
● 2026-05-13 05:22:30
● 2026-05-13 05:22:32

○MXmail.robertkretzer.com2015-06-12 → 2016-04-18 · 4 obs

● 2015-06-12 21:22:54
● 2016-04-18 22:42:34
○ 2026-05-13 05:22:30
○ 2026-05-13 05:22:32

○A62.146.22.32015-06-12 → 2016-04-18 · 4 obs

● 2015-06-12 21:22:54
● 2016-04-18 22:42:34
○ 2026-05-13 05:22:30
○ 2026-05-13 05:22:32

●A88.99.227.962026-05-13 → 2026-05-13 · 3 obs

○ 2016-04-18 22:42:34
● 2026-05-13 05:22:30
● 2026-05-13 05:22:32

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
robertkretzer.com	ns1.gra.de, ns2.gra.de	-

✅ Authoritative Response

Server:116.203.151.59

NS records: ns1.gra.de, ns2.gra.de

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for robertkretzer.com (unsigned zone)

⏱️ Timing

Total: 747ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`88.99.227.96`
MX	1	`delta.gra.de (pri: 10)`

Analysis

IP Addresses

mail.robertkretzer.com points to a single IP number: 88.99.227.96.

other host names for instance dvf.de, gra.de.dvf.de, nutzfahrzeug-eurogarant.de, flexcharter.eu and center-music.de share IP numbers with mail.robertkretzer.com.

Mail Servers

mail.robertkretzer.com is handled by a single mail server, delta.gra.de.

mail.robertkretzer.com shares the same mail server setup as other domains, for instance no02.p-nutz.de, ibook.de, it-cons.de, isv-berlin.net and de.bemdev.com.

mail.robertkretzer.com shares mail servers with other domains at least partially, including unitedengineering.de, nagel-offenbach.de, messe-consulting.de, mail.kundensport.de and kameraboersen.com.

Host delta.gra.de resolves to two IPs: 2a01:4f8:c2c:81f1::1 and 88.99.227.96.

mail.robertkretzer.com - robtex.com