mail.buildsys.cz - robtex.com

mail.buildsys.cz

DNSSEC⚠️ Not signed
A81.19.4.125🇨🇿 FASTER-AS81.19.0.0/20 FASTER CZ spol. s r.o.
PTRmail.buildsys.cz

buildsys.cz

DNSSEC🔒 Signed (DS record present)
A62.109.155.245🇨🇿 IGNUM-AS62.109.128.0/19 Network of Ignum s.r.o. Czech Republic http://www.ignum.cz/
NSns.forpsi.net ⭐
NSns.forpsi.cz
NSns.forpsi.it
MXmail.buildsys.cz ⭐
TXTv=spf1 mx ip4:81.19.4.113 ip4:81.19.4.125 -all
SOAns.forpsi.netadmin@forpsi.com 2026-08-04 #1

PTR for

125.4.19.81.in-addr.arpa

MX for

buildsys.cz

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DNS History

1 record (1 active, 0 former)

A81.19.4.125
●A81.19.4.1252026-04-20 → 2026-08-06 · 2 obs
● 2026-04-20 18:50:06
● 2026-08-06 07:51:30

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
czd.ns.nic.cz, c.ns.nic.cz, a.ns.nic.cz, b.ns.nic.cz-
buildsys.czns.forpsi.cz, ns.forpsi.it, ns.forpsi.net2 records

✅ Authoritative Response

Server:95.110.254.165

NS records: ns.forpsi.cz, ns.forpsi.it, ns.forpsi.net

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 674ms | Queries: -

📄 Records

TypeCountSample Data
A181.19.4.125

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns.forpsi.cz, ns.forpsi.cz)

Analysis

Mail Server Role

buildsys.cz uses mail.buildsys.cz as a mail server.

IP Addresses

mail.buildsys.cz resolves to one IP address: 81.19.4.125.

Host names like relay.buildsys.cz are further examples that share IP numbers with mail.buildsys.cz.