mail.jrcomputer.pl - robtex.com

mail.jrcomputer.pl

DNSSEC⚠️ Not signed
A136.243.254.121🇩🇪 Hetzner136.243.0.0/16 HETZNER-RZ-BLK-ERX3
PTRs602.calserver.eu

jrcomputer.pl

DNSSEC⚠️ Not signed
A136.243.254.121🇩🇪 Hetzner136.243.0.0/16 HETZNER-RZ-BLK-ERX3
NSns1.cal.pl ⭐
NSns2.cal.pl
MXmail.jrcomputer.pl ⭐
TXTv=spf1 a mx ip4:167.235.187.71 include:_spf.cal.pl -all
SOAns1.cal.plhostmaster@jrcomputer.pl 2025-10-09 #5

MX for

jrcomputer.pl

Same first word

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DNS History

1 record (1 active, 0 former)

A136.243.254.121
●A136.243.254.1212026-02-15 → 2026-03-23 · 2 obs
● 2026-02-15 22:10:58
● 2026-03-23 18:17:08

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
pla-dns.pl, b-dns.pl, d-dns.pl, f-dns.pl...-
jrcomputer.plns2.cal.pl, ns1.cal.pl2 records

✅ Authoritative Response

Server:185.8.238.10

NS records: ns2.cal.pl, ns1.cal.pl

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for jrcomputer.pl (unsigned zone)

⏱️ Timing

Total: 707ms | Queries: -

📄 Records

TypeCountSample Data
A1136.243.254.121

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns2.cal.pl, ns1.cal.pl)

Analysis

Mail Server Role

mail.jrcomputer.pl is the mail server for jrcomputer.pl.

IP Addresses

mail.jrcomputer.pl resolves to one IP number: 136.243.254.121.

other host names including damianmekal.com, mail.cieplomix.pl, fototeam.pl, stop-spam.pl and mail.rusztowanie.net.pl share IP numbers with mail.jrcomputer.pl.