mail.a4u.ch - robtex.com

mail.a4u.ch

DNSSEC⚠️ Not signed
A185.117.168.116🇨🇭 FREY-AS185.117.168.0/22 OptimaNet Schweiz AG
PTRserver34.hostfactory.ch

a4u.ch

DNSSEC⚠️ Not signed
A2a0e:f0c0:1:34::3532🇨🇭 FREY-AS2a0e:f0c0::/29
A185.117.168.117🇨🇭 FREY-AS185.117.168.0/22 OptimaNet Schweiz AG
NSns01.hostfactory.ch ⭐ ⚠️ Not in parent delegation
NSns02.hostfactory.ch ⚠️ Not in parent delegation
NSns341.hostfactory.ch ⚠️ Not in zone NS records
NSns342.hostfactory.ch ⚠️ Not in zone NS records
MXmx1.hostfactory.ch ⭐
MXmx2.hostfactory.swiss(20)
MXmx3.hostfactory.ch(30)
MXmx4.hostfactory.swiss(40)
TXTv=spf1 a:spf.hostfactory.ch -all
SOAns01.hostfactory.chwek@shuttlezone.ch 2025-12-13 #1

Previously MX for

a4u.ch

Same first word

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DNS History

2 records (1 active, 1 former)

20162017201820192020202120222023202420252026A185.117.168.11662.146.13.45
●A185.117.168.1162016-03-16 → 2026-04-14 · 3 obs
○ 2016-01-17 13:13:04
● 2016-03-16 07:31:50
● 2026-04-14 14:57:04
○A62.146.13.452015-06-27 → 2016-01-17 · 4 obs
● 2015-06-27 05:39:16
● 2016-01-17 13:13:04
○ 2016-03-16 07:31:50
○ 2026-04-14 14:57:04

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
chb.nic.ch, e.nic.ch, a.nic.ch, d.nic.ch...-
a4u.chns341.hostfactory.ch, ns342.hostfactory.ch-

✅ Authoritative Response

Server:156.67.10.18

NS records: ns341.hostfactory.ch, ns342.hostfactory.ch

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for a4u.ch (unsigned zone)

⏱️ Timing

Total: 811ms | Queries: -

📄 Records

TypeCountSample Data
A1185.117.168.116

Analysis

IP Addresses

mail.a4u.ch points to a single IP: 185.117.168.116.

Other host names, for instance mail.dechmann.ch, mail.sleeper.ch, mail.peakfinder.ch, mail.linarys.com and mail.cogitatio.ch share IP numbers with mail.a4u.ch.