`mail.closedloop.at`

DNSSEC	⚠️ Not signed
A	89.58.21.45^{🇩🇪 netcup-AS89.58.16.0/21}
		PTR	`mx152d.netcup.net`

`closedloop.at`

	DNSSEC	⚠️ Not signed
	A	2a0a:4cc0:5:b4d::23:7042^{🇦🇹 netcup-AS2a0a:4cc0::/43}
	A	89.58.21.43^{🇩🇪 netcup-AS89.58.16.0/21}
	NS	`root-dns.netcup.net` ⭐
	NS	`second-dns.netcup.net`
	NS	`third-dns.netcup.net`
	MX	`mail.closedloop.at` ⭐
	MX	`mx152d.netcup.net`⁽⁵⁰⁾
	TXT	`v=spf1 mx a include:_spf.webhosting.systems ~all`
	SOA	`root-dns.netcup.net`dnsadmin@netcup.net 2026-02-18 #2

MX for

closedloop.at

Same first word

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mail.fun

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mail.mn

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mail.health

mail.s3.amazonaws.com

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mail.couchpotatofries.org

mail.radio.fm

mail.od.ua

mail.ms

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DNS History

1 record (1 active, 0 former)

●A89.58.21.452026-03-23 → 2026-03-24 · 2 obs

● 2026-03-23 22:48:14
● 2026-03-24 02:18:38

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
at	u.ns.at, ns2.univie.ac.at, n.ns.at, d.ns.at...	-
closedloop.at	root-dns.netcup.net, third-dns.netcup.net, second-dns.netcup.net	-

✅ Authoritative Response

Server:37.221.199.199

NS records: root-dns.netcup.net, third-dns.netcup.net, second-dns.netcup.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for closedloop.at (unsigned zone)

⏱️ Timing

Total: 1364ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`89.58.21.45`

Analysis

Mail Server Role

mail.closedloop.at is the mail server for closedloop.at.

With mail.closedloop.at, mx152d.netcup.net is commonly used as a mail server.

IP Addresses

mail.closedloop.at maps to IP address 89.58.21.45.

Other host names, for instance mx152d.netcup.net, mail.itsinn.biz, mail.glioblastom-nerd.at, mail.sprachtherapie.biz and mail.curapro.at share IP numbers with mail.closedloop.at.

mail.closedloop.at - robtex.com