`tower7.smart.uk.com`

DNSSEC	⚠️ Not signed
A	89.197.41.87^{🇬🇧 Virtual189.197.0.0/16}
		PTR	`tower7.smart.uk.com`

`smart.uk.com`

	DNSSEC	⚠️ Not signed
	A	89.197.41.83^{🇬🇧 Virtual189.197.0.0/16}
	NS	`one.smart.uk.com` ⭐
	NS	`three.smart.uk.com`
	NS	`two.smart.uk.com`
	NS	`vm3mail.servers.smart.uk.com` ⚠️ Not in parent delegation
	MX	`tower7.smart.uk.com` ⭐
	MX	`smart-uk-com.mail.protection.outlook.com`⁽¹⁰⁰⁾
	TXT	`google-site-verification=ndJWRsnE6ud7MDSPERVugSc_vaJy01fGrKaHrLcxKTQ`
	TXT	`v=spf1 a ip4:89.197.41.64/27 include:spf.protection.outlook.com include:spf.s...`
	TXT	`MS=ms88733864`
	SOA	`one.smart.uk.com`info@smart-computers.co.uk 2026-04-08 #2

PTR for

87.41.197.89.in-addr.arpa

MX for

enginesplus.co.uk

snowbusiness.com

svw2000.co.uk

innovis.org.uk

smart.uk.com

smart-computers.co.uk

DNS History

1 record (1 active, 0 former)

●A89.197.41.872026-02-20 → 2026-04-14 · 2 obs

● 2026-02-20 19:25:36
● 2026-04-14 21:30:20

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
uk.com	ns1.centralnic.net, ns2.centralnic.net, ns3.centralnic.net, ns4.centralnic.net	-
smart.uk.com	two.smart.uk.com, three.smart.uk.com, one.smart.uk.com	3 records

✅ Authoritative Response

Server:54.39.99.147

NS records: two.smart.uk.com, three.smart.uk.com, one.smart.uk.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for smart.uk.com (unsigned zone)

⏱️ Timing

Total: 647ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`89.197.41.87`

📌 Glue Records Collected

Total: 3

In-bailiwick: 3 (one.smart.uk.com, two.smart.uk.com, three.smart.uk.com)

Analysis

Mail Server Role

tower7.smart.uk.com acts as the mail server for enginesplus.co.uk, snowbusiness.com, svw2000.co.uk, innovis.org.uk, smart.uk.com and a few other domains.

Commonly, one.smart.uk.com, three.smart.uk.com and two.smart.uk.com serve as mail servers together with tower7.smart.uk.com.

IP Addresses

tower7.smart.uk.com points to a single IP: 89.197.41.87.

tower7.smart.uk.com - robtex.com