`smtp.cornelsen.at`

DNSSEC	⚠️ Not signed
A	194.39.190.142^{🇩🇪 BIFAB-AS194.39.190.0/24 Cornelsen Verlag GmbH}
		PTR	`smtp.cornelsen.at`

`cornelsen.at`

	DNSSEC	⚠️ Not signed
	A	3.75.121.15^{🇩🇪 Amazon3.64.0.0/12 EC2 FRA Prefix}
	A	51.102.131.197^{🇺🇸 Amazon51.102.0.0/16 EC2 Prefix}
	A	63.185.157.152^{🇺🇸 Amazon63.184.0.0/14 EC2 Prefix}
	NS	`ns-10.awsdns-01.com` ⭐
	NS	`ns-1339.awsdns-39.org`
	NS	`ns-1708.awsdns-21.co.uk`
	NS	`ns-914.awsdns-50.net`
	MX	`smtp2.cornelsen.at` ⭐
	MX	`smtp.cornelsen.at`⁽¹⁵⁰⁾
	SOA	`ns-10.awsdns-01.com`awsdns-hostmaster@amazon.com serial=1

PTR for

142.190.39.194.in-addr.arpa

MX for

cornelsen.at

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DNS History

1 record (1 active, 0 former)

●A194.39.190.1422015-05-08 → 2026-07-10 · 2 obs

● 2015-05-08 23:00:02
● 2026-07-10 23:43:28

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
at	d.ns.at, j.ns.at, n.ns.at, r.ns.at...	-
cornelsen.at	ns-10.awsdns-01.com, ns-914.awsdns-50.net, ns-1339.awsdns-39.org, ns-1708.awsdns-21.co.uk	-

✅ Authoritative Response

Server:205.251.198.172

NS records: ns-10.awsdns-01.com, ns-914.awsdns-50.net, ns-1339.awsdns-39.org, ns-1708.awsdns-21.co.uk

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for cornelsen.at (unsigned zone)

⏱️ Timing

Total: 431ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`194.39.190.142`

Analysis

Mail Server Role

Mail for cornelsen.at is routed through the mail server smtp.cornelsen.at.

smtp2.cornelsen.at is often seen acting as a mail server in combination with smtp.cornelsen.at.

IP Addresses

smtp.cornelsen.at has exactly one IP address — 194.39.190.142.

smtp.cornelsen.at - robtex.com