`mail.one4u.ch`

DNSSEC	⚠️ Not signed
A	80.74.155.20^{🇨🇭 ASN-METANET80.74.144.0/20 METANET AG, Switzerland}
		PTR	`falkenstein.sui-inter.net`

`one4u.ch`

	DNSSEC	⚠️ Not signed
	A	80.74.155.20^{🇨🇭 ASN-METANET80.74.144.0/20 METANET AG, Switzerland}
	NS	`ns.ch-inter.net` ⭐
	NS	`ns1.cmsweb.ch`
	NS	`ns2.cmsweb.ch`
	MX	`mail.one4u.ch` ⭐
	SOA	`ns.ch-inter.net`hostmaster@metanet.ch 2007-10-20 #1

MX for

one4u.ch

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DNS History

1 record (1 active, 0 former)

●A80.74.155.202015-08-10 → 2026-08-10 · 2 obs

● 2015-08-10 15:16:18
● 2026-08-10 02:23:56

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
ch	b.nic.ch, e.nic.ch, a.nic.ch, d.nic.ch...	-
one4u.ch	ns1.cmsweb.ch, ns2.cmsweb.ch	2 records

✅ Authoritative Response

Server:80.74.144.45

NS records: ns1.cmsweb.ch, ns2.cmsweb.ch

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for one4u.ch (unsigned zone)

⏱️ Timing

Total: 568ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`80.74.155.20`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns2.cmsweb.ch, ns1.cmsweb.ch)

Analysis

Mail Server Role

mail.one4u.ch serves as a mail server for one4u.ch.

IP Addresses

mail.one4u.ch points to a single IP number: 80.74.155.20.

Additional host names — mail.ssfc.ch, mail.strassen-tiefbau.ch, mail.hagenwil.ch and two others — share IP numbers with mail.one4u.ch.

mail.one4u.ch - robtex.com

mail.one4u.ch

one4u.ch