failmail.dev - dns.ninja

🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`failmail.dev`

DNSSEC	🔒 Signed (DS record present)
A	2a01:4f8:1c0c:5e44::1^{🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK}
A	162.55.49.44^{🇩🇪 Hetzner162.55.0.0/16 HETZNER-DC}
NS	`kristin.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3ab5^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`kristin.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0b5^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`kristin.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20b5^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`kristin.ns.cloudflare.com`
		A	108.162.192.181^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`kristin.ns.cloudflare.com`
		A	172.64.32.181^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`kristin.ns.cloudflare.com`
		A	173.245.58.181^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`kristin.ns.cloudflare.com`
NS	`nitin.ns.cloudflare.com`
		A	2606:4700:58::adf5:3bd7^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nitin.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c1d7^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`nitin.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:21d7^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`nitin.ns.cloudflare.com`
		A	108.162.193.215^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nitin.ns.cloudflare.com`
		A	172.64.33.215^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nitin.ns.cloudflare.com`
		A	173.245.59.215^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nitin.ns.cloudflare.com`
MX	`failmail.dev` ⭐ 🔒
		A	2a01:4f8:1c0c:5e44::1^{🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK}
		A	162.55.49.44^{🇩🇪 Hetzner162.55.0.0/16 HETZNER-DC}
			PTR	`failmail.dev`
TXT	`v=spf1 mx a ra=postmaster -all`
SOA	`kristin.ns.cloudflare.com`dns@cloudflare.com serial=2414544383

`dev`

	DNSSEC	🔒 Signed (DS record present)
	NS	`ns-tld1.charlestonroadregistry.com` ⭐
	NS	`ns-tld2.charlestonroadregistry.com`
	NS	`ns-tld3.charlestonroadregistry.com`
	NS	`ns-tld4.charlestonroadregistry.com`
	NS	`ns-tld5.charlestonroadregistry.com`
	SOA	`ns-tld1.charlestonroadregistry.com`cloud-dns-hostmaster@google.com serial=1

🔒 HSTS Preload (+subdomains)

PTR for

44.49.55.162.in-addr.arpa

MX for

failmail.dev

pgrossmann.org

dgrossmann.org

Same first word

failmail.com

failmail.dk

failmail.org

failmail.nl

failmail.de

failmail.dev

failmail.net

Similar names

Previous names

Next names

DNS History

5 records (5 active, 0 former)

●NSkristin.ns.cloudflare.com2026-09-05 → 2026-09-30 · 2 obs

● 2026-09-05 18:23:08
● 2026-09-30 18:00:32

●NSnitin.ns.cloudflare.com2026-09-05 → 2026-09-30 · 2 obs

● 2026-09-05 18:23:08
● 2026-09-30 18:00:32

●MXfailmail.dev2026-09-05 → 2026-09-30 · 2 obs

● 2026-09-05 18:23:08
● 2026-09-30 18:00:32

●A162.55.49.442026-09-05 → 2026-09-30 · 2 obs

● 2026-09-05 18:23:08
● 2026-09-30 18:00:32

●A2a01:4f8:1c0c:5e44::12026-09-05 → 2026-09-30 · 2 obs

● 2026-09-05 18:23:08
● 2026-09-30 18:00:32

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
dev	ns-tld1.charlestonroadregistry.com, ns-tld2.charlestonroadregistry.com, ns-tld3.charlestonroadregistry.com, ns-tld4.charlestonroadregistry.com...	-
failmail.dev	kristin.ns.cloudflare.com, nitin.ns.cloudflare.com	-

✅ Authoritative Response

Server:172.64.33.215

NS records: kristin.ns.cloudflare.com, nitin.ns.cloudflare.com

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 725ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`162.55.49.44`
AAAA	1	`2a01:4f8:1c0c:5e44::1`
NS	2	`kristin.ns.cloudflare.com, nitin.ns.cloudflare.com`
MX	1	`failmail.dev (pri: 10)`
TXT	1	`v=spf1 mx a ra=postmaster -all`
SOA	1	`kristin.ns.cloudflare.com dns.cloudflare`

Analysis

Mail Server Role

failmail.dev, pgrossmann.org and dgrossmann.org all use failmail.dev as their mail server.

IP Addresses

failmail.dev has two IP addresses: 162.55.49.44 and 2a01:4f8:1c0c:5e44::1

Name Servers

failmail.dev uses two name servers for its delegation: kristin.ns.cloudflare.com and nitin.ns.cloudflare.com.

The name server configuration of failmail.dev is shared with other domains, for instance sirexohault-ai.com, hoa-kit.com, dealer-auction.com and two others.

At least some of failmail.dev's name servers are shared with other domains, for example tanzeemdigitallibrary.com, auovwt9.workers.dev, kohinoorproperties.net.in and two more.

These name servers tend to be used in conjunction with the name servers jarred.ns.cloudflare.com.

Hosts with 6 IP addresses each:

Hostname kristin.ns.cloudflare.com directs to 108.162.192.181, 172.64.32.181 and 173.245.58.181 along with 3 other IP addresses.

Hostname nitin.ns.cloudflare.com directs to 108.162.193.215, 172.64.33.215 and 173.245.59.215 along with 3 other IP addresses.

Mail Servers

failmail.dev uses exactly one mail server, which is failmail.dev.

failmail.dev, pgrossmann.org and dgrossmann.org all share the same mail server setup.

failmail.dev directs to two IP numbers, 162.55.49.44 and 2a01:4f8:1c0c:5e44::1.