`mx3.goodmail.cz`

DNSSEC	⚠️ Not signed
A	31.31.78.118^{🇨🇿 WEDOS31.31.72.0/21 Internet, a.s.}
		PTR	`pn.colakov.com`
		PTR	`mx2.goodmail.cz`

`goodmail.cz`

	DNSSEC	🔒 Signed (DS record present)
	A	31.31.78.118^{🇨🇿 WEDOS31.31.72.0/21 Internet, a.s.}
	NS	`ns1.ignum.com` ⭐
	NS	`ns2.ignum.cz`
	MX	`mx2.goodmail.cz` ⭐
	MX	`mx1.goodmail.cz`⁽²⁵⁾
	TXT	`v=spf1 ip4:31.31.78.79 ip4:31.31.78.118 -all`
	SOA	`ns1.ignum.com`hostmaster@ignum.cz 2026-04-07 #1

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DNS History

1 record (1 active, 0 former)

●A31.31.78.1182026-03-07 → 2026-04-14 · 2 obs

● 2026-03-07 01:47:20
● 2026-04-14 07:26:02

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
cz	d.ns.nic.cz, b.ns.nic.cz, a.ns.nic.cz, c.ns.nic.cz	-
goodmail.cz	ns2.ignum.cz, ns1.ignum.com	2 records

✅ Authoritative Response

Server:217.31.48.201

NS records: ns2.ignum.cz, ns1.ignum.com

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 866ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`31.31.78.118`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns2.ignum.cz, ns2.ignum.cz)

Analysis

IP Addresses

mx3.goodmail.cz resolves to a single IP address: 31.31.78.118.

Other host names including mx.goodmail.cz, goodmail.cz, pn.colakov.com, mx2.goodmail.cz and mail.colakov.com share IP numbers with mx3.goodmail.cz.

mx3.goodmail.cz - robtex.com

mx3.goodmail.cz

goodmail.cz