`mail.computerguru.ch`

DNSSEC	⚠️ Not signed
A	185.178.193.238^{🇨🇭 hosttech-AS185.178.193.0/24}
		PTR	`mx335.mail.hostserv.eu`

`computerguru.ch`

	DNSSEC	🔒 Signed (DS record present)
	A	185.66.109.225^{🇨🇭 FREY-AS185.66.108.0/22 OptimaNet Schweiz AG}
	NS	`ns1.hostserv.eu` ⭐
	NS	`ns2.hostserv.eu`
	NS	`ns3.hostserv.eu`
	MX	`mail.computerguru.ch` ⭐
	TXT	`v=spf1 +mx +a include:_spf.mail.hostserv.eu ~all`
	SOA	`ns1.hostserv.eu`remo@islerris.ch 2023-08-06 #78

MX for

computerguru.ch

Same first word

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mail.hr

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mail.pb.gov.br

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mail.(0x7075737379)cat.jp

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mail.vacations

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DNS History

2 records (1 active, 1 former)

●A185.178.193.2382026-03-16 → 2026-08-04 · 3 obs

○ 2016-04-09 02:54:32
● 2026-03-16 16:00:04
● 2026-08-04 09:21:50

○A46.14.218.302015-08-06 → 2016-04-09 · 4 obs

● 2015-08-06 10:59:06
● 2016-04-09 02:54:32
○ 2026-03-16 16:00:04
○ 2026-08-04 09:21:50

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
ch	a.nic.ch, b.nic.ch, d.nic.ch, e.nic.ch...	-
computerguru.ch	ns3.hostserv.eu, ns1.hostserv.eu, ns2.hostserv.eu	-

✅ Authoritative Response

Server:82.220.34.231

NS records: ns3.hostserv.eu, ns1.hostserv.eu, ns2.hostserv.eu

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 1083ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`185.178.193.238`

Analysis

Mail Server Role

The mail server mail.computerguru.ch processes email for computerguru.ch.

IP Addresses

mail.computerguru.ch resolves to just one IP address, 185.178.193.238.

Two other host names, along with retowahlen.ch, mail.musicwonder.ch and mail.vaari.ch, also share IP numbers with mail.computerguru.ch.

mail.computerguru.ch - robtex.com