`mail.oltmann-hellbusch.de`

DNSSEC	⚠️ Not signed
A	91.233.87.220^{🇩🇪 IPB91.233.84.0/22 -1blu-PI}
		PTR	`mx4bln1.prossl.de`

`oltmann-hellbusch.de`

	DNSSEC	⚠️ Not signed
	A	91.233.87.73^{🇩🇪 IPB91.233.84.0/22 -1blu-PI}
	NS	`ns1.prodns.de` ⭐
	NS	`ns2.prodns.de`
	NS	`ns3.prodns.de`
	MX	`mail.oltmann-hellbusch.de` ⭐
	TXT	`v=spf1 a mx ip4:91.233.84.0/22 ~all`
	SOA	`ns1.prodns.de`dnsmaster@prodns.de 2021-01-28 #1

MX for

oltmann-hellbusch.de

Same first word

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DNS History

1 record (1 active, 0 former)

●A91.233.87.2202015-06-29 → 2026-04-28 · 2 obs

● 2015-06-29 06:45:56
● 2026-04-28 07:28:56

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
de	a.nic.de, f.nic.de, z.nic.de	-
oltmann-hellbusch.de	ns2.prodns.de, ns3.prodns.de, ns1.prodns.de	2 records

✅ Authoritative Response

Server:13.248.213.54

NS records: ns2.prodns.de, ns3.prodns.de, ns1.prodns.de

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for oltmann-hellbusch.de (unsigned zone)

⏱️ Timing

Total: 1098ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`91.233.87.220`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns1.prodns.de, ns3.prodns.de)

Analysis

Mail Server Role

mail.oltmann-hellbusch.de serves as a mail server for oltmann-hellbusch.de.

IP Addresses

mail.oltmann-hellbusch.de resolves to one IP number: 91.233.87.220.

Other host names, for instance mail.trackit.golf, mail.deliwell.ch, mail.wer-ist-hier-der-bosch.de, mail.gew-hochschulforum-aachen.de and mail.kuechenstudio-martin.de share IP numbers with mail.oltmann-hellbusch.de.

mail.oltmann-hellbusch.de - robtex.com