mail.rubygrand.com - dns.ninja

`mail.rubygrand.com`

	DNSSEC	⚠️ Not signed
	A	2601:243:c901:38d0:e57c:efde:d2da:85e9^{🇺🇸 AS334912601:240::/26}
	A	138.199.2.51^{🇺🇸 CDN77138.199.2.0/23 ATL}

`rubygrand.com`

	DNSSEC	⚠️ Not signed
	A	2601:243:c901:38d0:e57c:efde:d2da:85e9^{🇺🇸 AS334912601:240::/26}
	A	138.199.2.51^{🇺🇸 CDN77138.199.2.0/23 ATL}
	NS	`ns1.dynu.com` ⭐
	NS	`ns2.dynu.com`
	NS	`ns3.dynu.com`
	NS	`ns4.dynu.com`
	NS	`ns5.dynu.com`
	NS	`ns6.dynu.com`
	MX	`mail.rubygrand.com` ⭐
	SOA	`ns1.dynu.com`administrator@dynu.com serial=1033

MX for

rubygrand.com

Same first word

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DNS History

3 records (2 active, 1 former)

●A138.199.2.512026-03-11 → 2026-08-02 · 2 obs

● 2026-03-11 16:16:58
● 2026-08-02 09:58:52

○A2600:1008:a01b:d0a5:206d:6df4:ad91:5d982026-03-11 → 2026-05-13 · 4 obs

● 2026-03-11 16:16:58
● 2026-05-13 12:48:52
○ 2026-05-22 18:23:00
○ 2026-08-02 09:58:52

●A2601:243:c901:38d0:e57c:efde:d2da:85e92026-05-22 → 2026-08-02 · 3 obs

○ 2026-05-13 12:48:52
● 2026-05-22 18:23:00
● 2026-08-02 09:58:52

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	j.gtld-servers.net, e.gtld-servers.net, a.gtld-servers.net, i.gtld-servers.net...	-
rubygrand.com	ns1.dynu.com, ns2.dynu.com, ns3.dynu.com, ns4.dynu.com...	11 records

✅ Authoritative Response

Server:108.181.159.122

NS records: ns1.dynu.com, ns2.dynu.com, ns3.dynu.com, ns4.dynu.com, ns5.dynu.com, ns6.dynu.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for rubygrand.com (unsigned zone)

⏱️ Timing

Total: 223ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`138.199.2.51`
AAAA	1	`2601:243:c901:38d0:e57c:efde:d2da:85e9`

📌 Glue Records Collected

Total: 11

Out-of-bailiwick: 11 (ns1.dynu.com, ns2.dynu.com, ns2.dynu.com...)

Analysis

Mail Server Role

rubygrand.com uses mail.rubygrand.com as a mail server.

IP Addresses

mail.rubygrand.com has two IP addresses: 138.199.2.51 and 2601:243:c901:38d0:e57c:efde:d2da:85e9

Host names such as mailserver.rubygrand.com, rubygrand.com and mintro.org share their IP numbers with mail.rubygrand.com.