`mail.develop4u.gr`

DNSSEC	⚠️ Not signed
A	2a02:c207:2020:1913::1^{🇩🇪 CONTABO2a02:c207::/32}
		PTR	`hornet.server4u.gr`
A	213.136.80.186^{🇩🇪 CONTABO213.136.80.0/23}

`develop4u.gr`

	DNSSEC	⚠️ Not signed
	A	2a02:c207:2020:1913::1^{🇩🇪 CONTABO2a02:c207::/32}
	A	213.136.80.186^{🇩🇪 CONTABO213.136.80.0/23}
	NS	`ns1.ns4u.gr` ⭐
	NS	`ns2.ns4u.gr`
	MX	`mail.develop4u.gr` ⭐
	TXT	`globalsign-domain-verification=u3BUQzU43jDlurHMCuKlhWLPsJkvVhX8b60WARrfiR`
	TXT	`firebase=testproject1-c61d7`
	TXT	`v=spf1 a mx a:hornet.server4u.gr`
	SOA	`ns1.ns4u.gr`mnicolas80@gmail.com 2026-07-27 #1

MX for

develop4u.gr

Same first word

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DNS History

4 records (2 active, 2 former)

○A148.251.23.432016-02-07 → 2017-07-06 · 5 obs

○ 2015-11-17 04:12:28
● 2016-02-07 18:46:04
● 2017-07-06 05:58:44
○ 2026-02-27 17:00:28
○ 2026-07-30 16:44:46

○A148.251.97.302015-07-11 → 2015-11-17 · 4 obs

● 2015-07-11 16:27:08
● 2015-11-17 04:12:28
○ 2016-02-07 18:46:04
○ 2026-07-30 16:44:46

●A213.136.80.1862026-02-27 → 2026-07-30 · 3 obs

○ 2017-07-06 05:58:44
● 2026-02-27 17:00:28
● 2026-07-30 16:44:46

●A2a02:c207:2020:1913::12026-02-27 → 2026-07-30 · 3 obs

○ 2017-07-06 05:58:44
● 2026-02-27 17:00:28
● 2026-07-30 16:44:46

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
gr	gr-a.ics.forth.gr, grdns.ics.forth.gr, gr-at.ics.forth.gr, estia.ics.forth.gr...	-
develop4u.gr	ns1.ns4u.gr, ns2.ns4u.gr	4 records

✅ Authoritative Response

Server:185.136.96.96

NS records: ns1.ns4u.gr, ns2.ns4u.gr

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for develop4u.gr (unsigned zone)

⏱️ Timing

Total: 182ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`213.136.80.186`
AAAA	1	`2a02:c207:2020:1913::1`

📌 Glue Records Collected

Total: 4

Out-of-bailiwick: 4 (ns1.ns4u.gr, ns2.ns4u.gr, ns1.ns4u.gr...)

Analysis

Mail Server Role

Mail for develop4u.gr is routed through the mail server mail.develop4u.gr.

IP Addresses

mail.develop4u.gr has two IP addresses: 213.136.80.186 and 2a02:c207:2020:1913::1

ns1.server4u.gr, ns4u.gr, mail.dns4u.gr plus two other host names have IP numbers in common with mail.develop4u.gr.

mail.develop4u.gr - dns.ninja