`mail.profengineering.ru`

DNSSEC	⚠️ Not signed
A	2a03:c980:dead:2a01:46:254:21:39^{🇷🇺 EUROBYTE2a03:c980:dead::/48}
		PTR	`vip-mail1.ihc.ru`
A	46.254.21.39^{🇷🇺 EUROBYTE46.254.20.0/23}

`profengineering.ru`

	DNSSEC	⚠️ Not signed
	A	37.143.11.11^{🇷🇺 EUROBYTE37.143.10.0/23}
	NS	`ns1.ihc.ru` ⭐
	NS	`ns2.ihc.ru`
	MX	`mail.profengineering.ru` ⭐
	TXT	`v=spf1 a mx ~all`
	SOA	`ns1.ihc.ru`info@ihc.ru 2022-03-22 #1

MX for

profengineering.ru

Same first word

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DNS History

3 records (2 active, 1 former)

○A194.135.105.852008-11-26 → 2008-11-26 · 3 obs

● 2008-11-26 04:17:02
○ 2015-10-27 07:08:26
○ 2026-06-14 19:13:38

●A2a03:c980:dead:2a01:46:254:21:392026-03-03 → 2026-06-14 · 3 obs

○ 2015-10-27 07:08:26
● 2026-03-03 08:53:18
● 2026-06-14 19:13:38

●A46.254.21.392026-03-03 → 2026-06-14 · 3 obs

○ 2015-10-27 07:08:26
● 2026-03-03 08:53:18
● 2026-06-14 19:13:38

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
ru	a.dns.ripn.net, b.dns.ripn.net, d.dns.ripn.net, e.dns.ripn.net...	-
profengineering.ru	ns1.ihc.ru, ns2.ihc.ru	5 records

✅ Authoritative Response

Server:46.254.23.52

NS records: ns1.ihc.ru, ns2.ihc.ru

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for profengineering.ru (unsigned zone)

⏱️ Timing

Total: 861ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`46.254.21.39`
AAAA	1	`2a03:c980:dead:2a01:46:254:21:39`

📌 Glue Records Collected

Total: 5

Out-of-bailiwick: 5 (ns1.ihc.ru, ns2.ihc.ru, ns2.ihc.ru...)

Analysis

Mail Server Role

The mail server mail.profengineering.ru processes email for profengineering.ru.

IP Addresses

mail.profengineering.ru resolves to the IP addresses 46.254.21.39 and 2a03:c980:dead:2a01:46:254:21:39

Two other host names, along with mail.rdp4.ru, mail.newlifes.ru and mail.driveto.ru, also share IP numbers with mail.profengineering.ru.

mail.profengineering.ru - robtex.com