`mail.clientflow.nl`

DNSSEC	⚠️ Not signed
A	2001:7b8:618:a:213:154:231:201^{🇳🇱 NL-BIT2001:7b8::/29 -20020405 BIT bv, The Netherlands}
		PTR	`web0101.theory7.net`
A	213.154.231.201^{🇳🇱 NL-BIT213.154.224.0/19 BIT B.V.}

`clientflow.nl`

	DNSSEC	⚠️ Not signed
	A	2001:7b8:618:a:213:154:231:201^{🇳🇱 NL-BIT2001:7b8::/29 -20020405 BIT bv, The Netherlands}
	A	213.154.231.201^{🇳🇱 NL-BIT213.154.224.0/19 BIT B.V.}
	NS	`ns.theory7.net` ⭐
	NS	`ns.theory7.eu`
	NS	`ns.theory7.nl`
	MX	`mail.clientflow.nl` ⭐
	TXT	`v=spf1 a mx ip4:213.154.231.201 include:filter.theory7.net ip6:2001:7b8:618...`
	SOA	`ns.theory7.net`hostmaster@clientflow.nl 2025-10-08 #4

MX for

clientflow.nl

Same first word

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DNS History

4 records (2 active, 2 former)

○A141.138.168.1342015-07-22 → 2016-06-24 · 4 obs

● 2015-07-22 23:35:18
● 2016-06-24 20:55:22
○ 2026-03-07 12:17:22
○ 2026-08-06 02:29:58

●A2001:7b8:618:a:213:154:231:2012026-03-07 → 2026-08-06 · 3 obs

○ 2016-06-24 20:55:22
● 2026-03-07 12:17:22
● 2026-08-06 02:29:58

●A213.154.231.2012026-03-07 → 2026-08-06 · 3 obs

○ 2016-06-24 20:55:22
● 2026-03-07 12:17:22
● 2026-08-06 02:29:58

○A2a03:3c00:a002:a090::12015-07-22 → 2016-06-24 · 4 obs

● 2015-07-22 23:35:18
● 2016-06-24 20:55:22
○ 2026-03-07 12:17:22
○ 2026-08-06 02:29:58

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
nl	ns1.dns.nl, ns3.dns.nl, ns4.dns.nl	-
clientflow.nl	ns.theory7.eu, ns.theory7.nl, ns.theory7.net	-

✅ Authoritative Response

Server:188.245.108.163

NS records: ns.theory7.eu, ns.theory7.nl, ns.theory7.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for clientflow.nl (unsigned zone)

⏱️ Timing

Total: 875ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`213.154.231.201`
AAAA	1	`2001:7b8:618:a:213:154:231:201`

Analysis

Mail Server Role

The mail server mail.clientflow.nl processes email for clientflow.nl.

IP Addresses

mail.clientflow.nl resolves to the IP addresses 213.154.231.201 and 2001:7b8:618:a:213:154:231:201

Two other host names, along with antonov-clubsite.nl, smgkrc.eu and geerdink.nl, also share IP numbers with mail.clientflow.nl.

mail.clientflow.nl - robtex.com