mail.post4u.ru - robtex.com

mail.post4u.ru

DNSSEC⚠️ Not signed
A91.220.38.29🇷🇺 PROFCOMM-AS91.220.38.0/24 GLOBUS-ROUTE-19
PTRmail.post4u.ru
PTRmail.prof-comm.ru

post4u.ru

DNSSEC⚠️ Not signed
NSns3-l2.nic.ru ⭐
NSns4-cloud.nic.ru
NSns4-l2.nic.ru
NSns8-cloud.nic.ru
NSns8-l2.nic.ru
MXmail.post4u.ru ⭐
TXTv=spf1 a:mail.post4u.ru -all
SOAns3-l2.nic.ruadmin@post4u.ru 2013-10-27 #9

PTR for

29.38.220.91.in-addr.arpa

MX for

prof-comm.ru
post4u.ru

Same first word

mail.co.cr
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DNS History

1 record (1 active, 0 former)

20162017201820192020202120222023202420252026A91.220.38.29
●A91.220.38.292015-08-16 → 2026-05-11 · 2 obs
● 2015-08-16 04:05:50
● 2026-05-11 00:37:16

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
rua.dns.ripn.net, b.dns.ripn.net, d.dns.ripn.net, e.dns.ripn.net...-
post4u.runs8-cloud.nic.ru, ns4-l2.nic.ru, ns3-l2.nic.ru, ns4-cloud.nic.ru...19 records

✅ Authoritative Response

Server:89.104.93.31

NS records: ns8-cloud.nic.ru, ns4-l2.nic.ru, ns3-l2.nic.ru, ns4-cloud.nic.ru, ns8-l2.nic.ru

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for post4u.ru (unsigned zone)

⏱️ Timing

Total: 1380ms | Queries: -

📄 Records

TypeCountSample Data
A191.220.38.29

📌 Glue Records Collected

Total: 19

Out-of-bailiwick: 19 (ns8-cloud.nic.ru, ns8-cloud.nic.ru, ns8-cloud.nic.ru...)

Analysis

Mail Server Role

mail.post4u.ru serves as the mail server for prof-comm.ru and post4u.ru.

IP Addresses

mail.post4u.ru resolves to one IP number: 91.220.38.29.

Other host names, for example mail.prof-comm.ru, share IP numbers with mail.post4u.ru.