`mail.holterman.com`

DNSSEC	⚠️ Not signed
A	46.17.8.90^{🇳🇱 GLOBAL-E46.17.8.0/22 Ospito B.V.}
		PTR	`venice.ospito.nl`

`holterman.com`

	DNSSEC	🔒 Signed (DS record present)
	A	46.17.8.90^{🇳🇱 GLOBAL-E46.17.8.0/22 Ospito B.V.}
	NS	`ns1.ospito.nl` ⭐
	NS	`ns2.ospito.net`
	NS	`ns3.ospito.eu`
	MX	`mail.holterman.com` ⭐
	MX	`fallback1.holterman.com`⁽²⁰⁾
	MX	`fallback2.holterman.com`⁽³⁰⁾
	MX	`fallback3.holterman.com`⁽⁴⁰⁾
	TXT	`v=spf1 a mx ip4:46.17.8.90 include:_spf.exactonline.nl -all`
	SOA	`ns1.ospito.nl`hostmaster@holterman.com 2026-07-05 #4

MX for

holterman.com

Same first word

mail.mil.id

mail.k12.vt.us

mail.photos

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DNS History

9 records (1 active, 8 former)

○NSrict-vhsrv1.rijnmondict.nl2015-11-04 → 2016-07-28 · 4 obs

● 2015-11-04 13:17:34
● 2016-07-28 10:26:56
○ 2026-07-20 13:56:56
○ 2026-07-27 10:58:26

○NSrict-vhsrv2.rijnmondnetwork.nl2015-11-04 → 2016-01-20 · 4 obs

● 2015-11-04 13:17:34
● 2016-01-20 07:19:12
○ 2016-04-12 01:42:14
○ 2026-07-27 10:58:26

○NSrict-vhsrv3.rijnmondict.nl2015-11-04 → 2016-07-28 · 4 obs

● 2015-11-04 13:17:34
● 2016-07-28 10:26:56
○ 2026-07-20 13:56:56
○ 2026-07-27 10:58:26

○NSrict-vhsrv5.rijnmondict.nl2016-04-12 → 2016-07-28 · 5 obs

○ 2016-01-20 07:19:12
● 2016-04-12 01:42:14
● 2016-07-28 10:26:56
○ 2026-07-20 13:56:56
○ 2026-07-27 10:58:26

○MXholterman.com2015-11-04 → 2016-07-28 · 4 obs

● 2015-11-04 13:17:34
● 2016-07-28 10:26:56
○ 2026-07-20 13:56:56
○ 2026-07-27 10:58:26

○A37.97.159.1202016-04-12 → 2016-07-28 · 5 obs

○ 2016-01-20 07:19:12
● 2016-04-12 01:42:14
● 2016-07-28 10:26:56
○ 2026-07-20 13:56:56
○ 2026-07-27 10:58:26

●A46.17.8.902026-07-20 → 2026-07-27 · 3 obs

○ 2016-07-28 10:26:56
● 2026-07-20 13:56:56
● 2026-07-27 10:58:26

○A77.60.77.2322015-07-19 → 2016-01-20 · 4 obs

● 2015-07-19 12:55:28
● 2016-01-20 07:19:12
○ 2016-04-12 01:42:14
○ 2026-07-27 10:58:26

○CNAMEholterman.com2015-07-19 → 2016-07-28 · 4 obs

● 2015-07-19 12:55:28
● 2016-07-28 10:26:56
○ 2026-07-20 13:56:56
○ 2026-07-27 10:58:26

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
holterman.com	ns2.ospito.net, ns1.ospito.nl, ns3.ospito.eu	-

✅ Authoritative Response

Server:46.17.14.250

NS records: ns2.ospito.net, ns1.ospito.nl, ns3.ospito.eu

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 790ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`46.17.8.90`

Analysis

Mail Server Role

mail.holterman.com is a mail server for holterman.com.

fallback1.holterman.com, fallback2.holterman.com and fallback3.holterman.com commonly appear as mail servers together with mail.holterman.com.

IP Addresses

mail.holterman.com directs to one IP number, which is 46.17.8.90.

Among the host names that share IP numbers with mail.holterman.com are mail.hinterer.nl, mail.westerblokker.nl, mail.artprint.nl and two others.

mail.holterman.com - robtex.com