mail.datac.cz - robtex.com

mail.datac.cz

DNSSEC⚠️ Not signed
A2001:1528:286::2001🇨🇿 CASABLANCA-AS2001:1528::/32 Casablanca INT v6 network
PTRalfa.datac.cz
A81.0.250.1🇨🇿 CASABLANCA-AS81.0.250.0/24 Casablanca INT
MXmail.datac.cz ⭐
A2001:1528:286::2001🇨🇿 CASABLANCA-AS2001:1528::/32 Casablanca INT v6 network
PTRalfa.datac.cz
A81.0.250.1🇨🇿 CASABLANCA-AS81.0.250.0/24 Casablanca INT
PTRalfa.datac.cz
MXrelay.datac.cz(50)
A2001:1528:286::2019🇨🇿 CASABLANCA-AS2001:1528::/32 Casablanca INT v6 network
PTRbeta.datac.cz
A81.0.250.19🇨🇿 CASABLANCA-AS81.0.250.0/24 Casablanca INT
PTRbeta.datac.cz
TXTv=spf1 a mx ip4:81.0.250.1/24 ip6:2001:1528:286::/48 ?all

datac.cz

DNSSEC🔒 Signed (DS record present)
A2001:1528:286::2001🇨🇿 CASABLANCA-AS2001:1528::/32 Casablanca INT v6 network
A81.0.250.20🇨🇿 CASABLANCA-AS81.0.250.0/24 Casablanca INT
NSns1.datac.cz ⭐
NSns.datac.cz
MXalfa.datac.cz ⭐
MXrelay.datac.cz(50)
TXTv=spf1 a mx ip4:81.0.250.1/24 ip6:2001:1528:286::/48 ?all
SOAns.datac.czhostmaster@datac.cz 2026-04-09 #1

PTR for

3.250.0.81.in-addr.arpa
3.0.0.2.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.6.8.2.0.8.2.5.1.1.0.0.2.ip6.arpa

MX for

pop.datac.cz
aztherm.info
aztherm.mobi
aztherm.eu
lorman.biz
hapon.eu
aztherm.com
mail.datac.cz
aztherm.org

Previously MX for

finpo.cz
aude.cz
jl.cz
datac.cz
phc.cz

Same first word

mail.energy
mail.mods.jp
mail.online
mail.ras.ru
mail.ls
mail.app
mail.co.kr
mail.rv.ua
mail.ox.rs
mail.idv.tw
mail.pt
mail.ke
mail.net.sa
mail.idf.il
mail.house
mail.mk
mail.club
mail.news
mail.daa.jp
mail.sd
mail.co.id
mail.top
mail.health-carereform.com
mail.iki.fi
mail.gouv.ml
mail.limited
mail.man
mail.gen.tr
mail.zip
mail.dvrcam.info
mail.gov.gd
mail.brasilia.me
mail.hopto.me
mail.pn
mail.panel.dev
mail.gov.il
mail.ie
mail.co.cr
mail.pa
mail.schaeffler
mail.gov.to
mail.berlin
mail.dynns.com
mail.go.id
mail.tl
mail.rec.br
mail.com.ps
mail.(0x6c6f6c697461)punk.jp
mail.sc
mail.gov.ie
mail.company
mail.gov.mn
mail.priv.pl
mail.mw
mail.gov.na
mail.co.nz
mail.sdscloud.pl
mail.az
mail.is
mail.id
mail.tr
mail.tt
mail.media
mail.vinnica.ua
mail.readymade.jp
mail.raindrop.jp
mail.tj
mail.mydissent.net
mail.spdns.org
mail.lk
mail.fish
mail.pp.ua
mail.fun
mail.no-ip.net
mail.mn
mail.mydns.bz
mail.fem.jp
mail.health
mail.s3.amazonaws.com
mail.gov.ye
mail.com.kg
mail.nra
mail.couchpotatofries.org
mail.radio.fm
mail.od.ua
mail.ms
mail.boleslawiec.pl
mail.mydns.vc
mail.lutsk.ua
mail.kz
mail.im
mail.kaas.gg
mail.it.com
mail.gov.mg
mail.ss
mail.co
mail.tc
mail.gda.pl
mail.world
mail.pe

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liam.glass
ilma.es
liam.cool
almi.nl
lima.tv
mila.vc
amil.com.ar
amil.ru
mila.care
mali.com.ye
ialm.com
iaml.com.pl
aiml.info
lmia.ca
lima.estate
imla.com.co
amil.med.br
laim.org
mali.com.ar
amil.co
mali.com.br
aiml.com.pk
aiml.cn
mila.ua
mali.net
mila.mk
ilam.com
lami.world
amli.ru
ilma.cn
mali.de
liam.gg
lami.pro
imla.jp
iaml.de
amil.co.il
mila.co.ua
liam.fm
ilam.ru
mila.fr
ialm.com.br
ilam.co.uk
lima.lu
imal.com.tr
lima.oh.us
lmia.org
mila.online
lima.com.ua
alim.com.my
amil.healthcare
lima.net.ua
mila.media
mali.ir
lmai.ru
almi.nu
lima.plus

DNS History

8 records (4 active, 4 former)

20162017201820192020202120222023202420252026MXmail.datac.czrelay.datac.czA2001:1528:286::200181.0.250.12001:1528:286::20022001:1528:286::200381.0.250.281.0.250.3
●MXmail.datac.cz2015-07-21 → 2026-04-11 · 2 obs
● 2015-07-21 04:07:20
● 2026-04-11 21:32:30
●MXrelay.datac.cz2015-07-21 → 2026-04-11 · 2 obs
● 2015-07-21 04:07:20
● 2026-04-11 21:32:30
●A2001:1528:286::20012026-02-22 → 2026-04-11 · 3 obs
○ 2021-04-12 03:39:26
● 2026-02-22 14:58:14
● 2026-04-11 21:32:30
○A2001:1528:286::20022016-02-04 → 2016-05-26 · 5 obs
○ 2015-07-21 04:07:20
● 2016-02-04 01:03:36
● 2016-05-26 03:00:50
○ 2016-09-04 19:45:50
○ 2026-04-11 21:32:30
○A2001:1528:286::20032016-09-04 → 2021-04-12 · 5 obs
○ 2016-05-26 03:00:50
● 2016-09-04 19:45:50
● 2021-04-12 03:39:26
○ 2026-02-22 14:58:14
○ 2026-04-11 21:32:30
●A81.0.250.12026-02-22 → 2026-04-11 · 3 obs
○ 2021-04-12 03:39:26
● 2026-02-22 14:58:14
● 2026-04-11 21:32:30
○A81.0.250.22015-07-21 → 2016-05-26 · 4 obs
● 2015-07-21 04:07:20
● 2016-05-26 03:00:50
○ 2016-09-04 19:45:50
○ 2026-04-11 21:32:30
○A81.0.250.32016-09-04 → 2021-04-12 · 5 obs
○ 2016-05-26 03:00:50
● 2016-09-04 19:45:50
● 2021-04-12 03:39:26
○ 2026-02-22 14:58:14
○ 2026-04-11 21:32:30

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
cza.ns.nic.cz, b.ns.nic.cz, c.ns.nic.cz, d.ns.nic.cz-
datac.czns.datac.cz, ns1.datac.cz4 records

✅ Authoritative Response

Server:81.0.250.19

NS records: ns.datac.cz, ns1.datac.cz

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 947ms | Queries: -

📄 Records

TypeCountSample Data
A181.0.250.1
AAAA12001:1528:286::2001
MX2relay.datac.cz (pri: 50), mail.datac.cz (pri: 0)
TXT1v=spf1 a mx ip4:81.0.250.1/24 ip6:2001:1

📌 Glue Records Collected

Total: 4

In-bailiwick: 4 (ns.datac.cz, ns.datac.cz, ns1.datac.cz...)

Analysis

Mail Server Role

mail.datac.cz serves mail for the domains pop.datac.cz, aztherm.info, aztherm.mobi, aztherm.eu, lorman.biz and a few other domains.

relay.datac.cz is commonly used as a mail server with mail.datac.cz.

IP Addresses

The entity mail.datac.cz points to two IP numbers: 2001:1528:286::2001 and 81.0.250.1.

For instance, other host names alfa.datac.cz, pop.datac.cz, webmail.dumrealit.cz, mail.dumrealit.cz and ns.datac.cz share IP numbers with mail.datac.cz.

Mail Servers

Two mail servers handle mail.datac.cz: mail.datac.cz and relay.datac.cz.

mail.datac.cz shares the same mail server setup as other domains, for instance pop.datac.cz, aztherm.info, aztherm.mobi, aztherm.eu and lorman.biz.

mail.datac.cz shares mail servers with other domains at least partially; for instance lormanova.cz, activia.sk, reklamadoradia.cz, poketto.eu and beta.datac.cz.

these mail servers are commonly used with the mail servers mail.helma.cz.

Host names with two IP numbers:

mail.datac.cz points to 2001:1528:286::2001 and 81.0.250.1; relay.datac.cz points to 2001:1528:286::2019 and 81.0.250.19.