rubymail-usa.com - dns.ninja

`rubymail-usa.com`

DNSSEC	⚠️ Not signed
A	68.233.137.3^{🇺🇸 AS1215468.233.136.0/23 MTC1 ECR000001350769}
NS	`ns-1692.awsdns-19.co.uk` ⭐
		A	2600:9000:5306:9c00::1^{🇺🇸 Amazon2600:9000:5306::/48 - CloudFront}
			PTR	`ns-1692.awsdns-19.co.uk`
		A	205.251.198.156^{🇺🇸 Amazon205.251.198.0/24 prefix}
			PTR	`ns-1692.awsdns-19.co.uk`
NS	`ns-1166.awsdns-17.org`
		A	2600:9000:5304:8e00::1^{🇺🇸 Amazon2600:9000:5304::/48 - CloudFront}
			PTR	`ns-1166.awsdns-17.org`
		A	205.251.196.142^{🇺🇸 Amazon205.251.196.0/24 prefix}
			PTR	`ns-1166.awsdns-17.org`
NS	`ns-289.awsdns-36.com`
		A	2600:9000:5301:2100::1^{🇺🇸 Amazon2600:9000:5301::/48 - CloudFront}
			PTR	`ns-289.awsdns-36.com`
		A	205.251.193.33^{🇺🇸 Amazon205.251.193.0/24 prefix}
			PTR	`ns-289.awsdns-36.com`
NS	`ns-792.awsdns-35.net`
		A	2600:9000:5303:1800::1^{🇺🇸 Amazon2600:9000:5303::/48 - CloudFront}
			PTR	`ns-792.awsdns-35.net`
		A	205.251.195.24^{🇺🇸 Amazon205.251.195.0/24 prefix}
			PTR	`ns-792.awsdns-35.net`
MX	`rubymail-usa.com` ⭐
		A	68.233.137.3^{🇺🇸 AS1215468.233.136.0/23 MTC1 ECR000001350769}
TXT	`v=spf1 ip4:68.233.137.0/28 -all`
SOA	`ns-1692.awsdns-19.co.uk`awsdns-hostmaster@amazon.com serial=1

`com`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.gtld-servers.net` ⭐
	NS	`b.gtld-servers.net`
	NS	`c.gtld-servers.net`
	NS	`d.gtld-servers.net`
	NS	`e.gtld-servers.net`
	NS	`f.gtld-servers.net`
	NS	`g.gtld-servers.net`
	NS	`h.gtld-servers.net`
	NS	`i.gtld-servers.net`
	NS	`j.gtld-servers.net`
	NS	`k.gtld-servers.net`
	NS	`l.gtld-servers.net`
	NS	`m.gtld-servers.net`
	SOA	`a.gtld-servers.net`nstld@verisign-grs.com serial=1785060367

MX for

rubymail-usa.com

Subdomains

smtp.rubymail-usa.com

content.rubymail-usa.com

Same first word

rubymail-usa.com

DNS History

13 records (6 active, 7 former)

●NSns-1166.awsdns-17.org2026-03-19 → 2026-07-26 · 3 obs

○ 2019-03-27 22:34:12
● 2026-03-19 15:04:42
● 2026-07-26 10:29:14

●NSns-1692.awsdns-19.co.uk2026-03-19 → 2026-07-26 · 3 obs

○ 2019-03-27 22:34:12
● 2026-03-19 15:04:42
● 2026-07-26 10:29:14

●NSns-289.awsdns-36.com2026-03-19 → 2026-07-26 · 3 obs

○ 2019-03-27 22:34:12
● 2026-03-19 15:04:42
● 2026-07-26 10:29:14

●NSns-792.awsdns-35.net2026-03-19 → 2026-07-26 · 3 obs

○ 2019-03-27 22:34:12
● 2026-03-19 15:04:42
● 2026-07-26 10:29:14

○NSns1.p27.dynect.net2019-03-27 → 2019-03-27 · 4 obs

○ 2016-11-12 09:06:22
● 2019-03-27 22:34:12
○ 2026-03-19 15:04:42
○ 2026-07-26 10:29:14

○NSns1.yesmail-root.com2007-09-11 → 2016-11-12 · 4 obs

● 2007-09-11 23:51:08
● 2016-11-12 09:06:22
○ 2019-03-27 22:34:12
○ 2026-07-26 10:29:14

○NSns2.p27.dynect.net2019-03-27 → 2019-03-27 · 4 obs

○ 2016-11-12 09:06:22
● 2019-03-27 22:34:12
○ 2026-03-19 15:04:42
○ 2026-07-26 10:29:14

○NSns2.yesmail-root.com2007-09-11 → 2016-11-12 · 4 obs

● 2007-09-11 23:51:08
● 2016-11-12 09:06:22
○ 2019-03-27 22:34:12
○ 2026-07-26 10:29:14

○NSns3.p27.dynect.net2019-03-27 → 2019-03-27 · 4 obs

○ 2016-11-12 09:06:22
● 2019-03-27 22:34:12
○ 2026-03-19 15:04:42
○ 2026-07-26 10:29:14

○NSns3.yesmail-root.com2007-09-11 → 2016-11-12 · 4 obs

● 2007-09-11 23:51:08
● 2016-11-12 09:06:22
○ 2019-03-27 22:34:12
○ 2026-07-26 10:29:14

○NSns4.p27.dynect.net2019-03-27 → 2019-03-27 · 4 obs

○ 2016-11-12 09:06:22
● 2019-03-27 22:34:12
○ 2026-03-19 15:04:42
○ 2026-07-26 10:29:14

●MXrubymail-usa.com2007-09-11 → 2026-07-26 · 2 obs

● 2007-09-11 23:51:08
● 2026-07-26 10:29:14

●A68.233.137.32015-05-14 → 2026-07-26 · 3 obs

○ 2007-09-11 23:51:08
● 2015-05-14 15:46:46
● 2026-07-26 10:29:14

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	f.gtld-servers.net, e.gtld-servers.net, k.gtld-servers.net, h.gtld-servers.net...	-
rubymail-usa.com	ns-289.awsdns-36.com, ns-792.awsdns-35.net, ns-1692.awsdns-19.co.uk, ns-1166.awsdns-17.org	2 records

✅ Authoritative Response

Server:205.251.198.156

NS records: ns-289.awsdns-36.com, ns-792.awsdns-35.net, ns-1692.awsdns-19.co.uk, ns-1166.awsdns-17.org

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for rubymail-usa.com (unsigned zone)

⏱️ Timing

Total: 409ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`68.233.137.3`
NS	4	`ns-1166.awsdns-17.org, ns-1692.awsdns-19.co.uk...`
MX	1	`rubymail-usa.com (pri: 0)`
TXT	1	`v=spf1 ip4:68.233.137.0/28 -all`
SOA	1	`ns-1692.awsdns-19.co.uk awsdns-hostmaste`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns-289.awsdns-36.com, ns-289.awsdns-36.com)

Analysis

Hierarchy

rubymail-usa.com is the parent domain of smtp.rubymail-usa.com and content.rubymail-usa.com.

Mail Server Role

rubymail-usa.com acts as its own mail server.

IP Addresses

rubymail-usa.com points to a single IP number: 68.233.137.3.

Name Servers

rubymail-usa.com has four authoritative name servers: ns-289.awsdns-36.com, ns-792.awsdns-35.net, ns-1166.awsdns-17.org and ns-1692.awsdns-19.co.uk.

The name servers of rubymail-usa.com overlap at least partially with those of other domains — among them salisburyzoo.org, port.emarketeer.com, lemonadeca.net and two more.

Each of the four hosts ns-289.awsdns-36.com, ns-792.awsdns-35.net, ns-1166.awsdns-17.org and ns-1692.awsdns-19.co.uk has two IP addresses. ns-289.awsdns-36.com points to 205.251.193.33 and 2600:9000:5301:2100::1. ns-792.awsdns-35.net points to 205.251.195.24 and 2600:9000:5303:1800::1. ns-1166.awsdns-17.org points to 205.251.196.142 and 2600:9000:5304:8e00::1. ns-1692.awsdns-19.co.uk points to 205.251.198.156 and 2600:9000:5306:9c00::1.

Mail Servers

rubymail-usa.com has a single mail server: rubymail-usa.com itself.

rubymail-usa.com directs to just one IP number, 68.233.137.3.