`mail.optico.nl`

DNSSEC	⚠️ Not signed
A	18.193.147.120^{🇩🇪 Amazon18.192.0.0/15 EC2 FRA prefix}
		PTR	`ec2-18-193-147-120.eu-central-1.compute.amazonaws.com`

`optico.nl`

	DNSSEC	⚠️ Not signed
	A	18.193.147.120^{🇩🇪 Amazon18.192.0.0/15 EC2 FRA prefix}
	NS	`ns1.esm-ici.nl` ⭐
	NS	`ns2.esm-ici.nl`
	MX	`mail.optico.nl` ⭐
	TXT	`v=spf1 a mx ip4:10.30.1.10 include:relay.mailchannels.net ~all`
	SOA	`ns1.esm-ici.nl`hostmaster@optico.nl 2025-03-17 #1

MX for

optico.nl

Same first word

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DNS History

3 records (1 active, 2 former)

●A18.193.147.1202026-04-04 → 2026-04-04 · 2 obs

○ 2016-07-18 04:54:16
● 2026-04-04 18:54:12

○A85.17.221.2392015-10-16 → 2016-07-18 · 4 obs

○ 2015-04-07 19:10:20
● 2015-10-16 15:36:52
● 2016-07-18 04:54:16
○ 2026-04-04 18:54:12

○A85.17.242.482015-04-07 → 2015-04-07 · 3 obs

● 2015-04-07 19:10:20
○ 2015-10-16 15:36:52
○ 2026-04-04 18:54:12

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
nl	ns3.dns.nl, ns1.dns.nl, ns4.dns.nl	-
optico.nl	ns1.esm-ici.nl, ns2.esm-ici.nl	2 records

✅ Authoritative Response

Server:18.157.192.170

NS records: ns1.esm-ici.nl, ns2.esm-ici.nl

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for optico.nl (unsigned zone)

⏱️ Timing

Total: 314ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`18.193.147.120`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns1.esm-ici.nl, ns2.esm-ici.nl)

Analysis

Mail Server Role

mail.optico.nl is the mail server for optico.nl.

IP Addresses

mail.optico.nl points to a single IP number: 18.193.147.120.

other host names for instance dairylife.net, apsnet.nl, mail.esm-ici.nl, mail.equichamp.com and streampc.nl share IP numbers with mail.optico.nl.

mail.optico.nl - robtex.com

mail.optico.nl

optico.nl