`mail.koppelco.com`

DNSSEC	⚠️ Not signed
A	2a01:7c8:d002:41e:5054:ff:feb9:55c1^{🇳🇱 TRANSIP-AS2a01:7c8::/32 TransIP B.V. Amsterdam IPv6 network}
		PTR	`debbie.koppelco.net`
A	136.144.212.115^{🇳🇱 TRANSIP-AS136.144.128.0/17 TransIP BV Amsterdam, The Netherlands}

`koppelco.com`

	DNSSEC	🔒 Signed (DS record present)
	A	2a01:7c8:d002:41e:5054:ff:feb9:55c1^{🇳🇱 TRANSIP-AS2a01:7c8::/32 TransIP B.V. Amsterdam IPv6 network}
	A	136.144.212.115^{🇳🇱 TRANSIP-AS136.144.128.0/17 TransIP BV Amsterdam, The Netherlands}
	NS	`ns0.transip.net` ⭐
	NS	`ns1.transip.nl`
	NS	`ns2.transip.eu`
	MX	`mail.koppelco.com` ⭐
	MX	`relay.transip.nl`⁽²⁰⁾
	TXT	`v=spf1 a:mail.koppelco.com -all`
	SOA	`ns0.transip.net`hostmaster@transip.nl 2026-05-17 #0

MX for

koppelco.com

Same first word

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DNS History

3 records (2 active, 1 former)

●A136.144.212.1152026-03-09 → 2026-05-18 · 3 obs

○ 2017-03-21 06:48:24
● 2026-03-09 16:20:36
● 2026-05-18 03:06:00

●A2a01:7c8:d002:41e:5054:ff:feb9:55c12026-03-09 → 2026-05-18 · 3 obs

○ 2017-03-21 06:48:24
● 2026-03-09 16:20:36
● 2026-05-18 03:06:00

○A95.211.113.2382017-03-21 → 2017-03-21 · 3 obs

● 2017-03-21 06:48:24
○ 2026-03-09 16:20:36
○ 2026-05-18 03:06:00

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...	-
koppelco.com	ns1.transip.nl, ns0.transip.net, ns2.transip.eu	-

✅ Authoritative Response

Server:37.97.199.195

NS records: ns1.transip.nl, ns0.transip.net, ns2.transip.eu

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 815ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`136.144.212.115`
AAAA	1	`2a01:7c8:d002:41e:5054:ff:feb9:55c1`

Analysis

Mail Server Role

mail.koppelco.com is used as a mail server for koppelco.com.

relay.transip.nl is commonly used as mail server together with mail.koppelco.com.

IP Addresses

mail.koppelco.com points to two IP numbers: 136.144.212.115 and 2a01:7c8:d002:41e:5054:ff:feb9:55c1.

Other host names, for instance koppelco.net, mail.koppelco.net and koppelco.com share IP numbers with mail.koppelco.com.

mail.koppelco.com - robtex.com