`smtpcloud.simitu.dk`

DNSSEC	⚠️ Not signed
NS	`ns1.electric.net` ⚠️ Not in zone NS records
		A	2a01:77c0:7135:4301::230^{🇩🇰 Amazon2a01:77c0:7135::/48 EC2 Prefix}
			PTR	`ns1.electric.net`
		A	208.70.135.83^{🇺🇸 Amazon208.70.135.0/24 EC2 Prefix}
			PTR	`ns1.electric.net`
NS	`ns2.electric.net` ⚠️ Not in zone NS records
		A	2a01:77c0:1619:4100::230^{🇩🇰 Amazon2a01:77c0:1619::/48 EC2 Prefix}
			PTR	`ns2.electric.net`
		A	192.162.219.248^{🇮🇪 Amazon192.162.219.0/24 EC2 Prefix}
			PTR	`ns2.electric.net`
NS	`ns3.electric.net` ⚠️ Not in zone NS records
		A	2a01:77c0:7135:4300::230^{🇩🇰 Amazon2a01:77c0:7135::/48 EC2 Prefix}
			PTR	`ns3.electric.net`
		A	208.70.135.236^{🇺🇸 Amazon208.70.135.0/24 EC2 Prefix}
			PTR	`ns3.electric.net`
NS	`ns4.electric.net` ⚠️ Not in zone NS records
		A	2a01:77c0:1619:4101::230^{🇩🇰 Amazon2a01:77c0:1619::/48 EC2 Prefix}
			PTR	`ns4.electric.net`
		A	192.162.219.153^{🇮🇪 Amazon192.162.219.0/24 EC2 Prefix}
			PTR	`ns4.electric.net`

`simitu.dk`

	DNSSEC	🔒 Signed (DS record present)
	A	176.9.153.125^{🇩🇪 Hetzner176.9.0.0/16 HETZNER-RZ-FKS-BLK4}
	NS	`ns01.one.com` ⭐
	NS	`ns02.one.com`
	MX	`simitu-dk.mx1-dk.mailanyone.net` ⭐
	MX	`simitu-dk.mx2-dk.mailanyone.net`⁽²⁰⁾
	MX	`simitu-dk.mx3-dk.mailanyone.net`⁽³⁰⁾
	TXT	`v=spf1 include:_spf.google.com include:mail.zendesk.com include:spf.mailanyon...`
	TXT	`google-site-verification=HSFlzr4agDdvSfjzFzZwxmDL8S_fTO0gq2Pw5D6FQrw`
	SOA	`ns01.one.com`hostmaster@one.com 2026-05-07 #5

PTR for

148.35.74.195.in-addr.arpa

Same first word

smtpcloud.cz

smtpcloud.org

smtpcloud.io

smtpcloud.nl

smtpcloud.in

Similar names

cloudsmtp.org

cloudsmtp.net

cloudsmtp.com

cloudsmtp.com.uy

DNS History

6 records (4 active, 2 former)

●NSns1.electric.net2026-04-14 → 2026-05-10 · 2 obs

● 2026-04-14 19:09:16
● 2026-05-10 02:33:52

●NSns2.electric.net2026-04-14 → 2026-05-10 · 2 obs

● 2026-04-14 19:09:16
● 2026-05-10 02:33:52

●NSns3.electric.net2026-04-14 → 2026-05-10 · 2 obs

● 2026-04-14 19:09:16
● 2026-05-10 02:33:52

●NSns4.electric.net2026-04-14 → 2026-05-10 · 2 obs

● 2026-04-14 19:09:16
● 2026-05-10 02:33:52

○A178.23.247.1822016-05-10 → 2016-05-10 · 3 obs

● 2016-05-10 04:23:52
○ 2026-04-14 19:09:16
○ 2026-05-10 02:33:52

○A178.23.247.1842016-05-10 → 2016-05-10 · 3 obs

● 2016-05-10 04:23:52
○ 2026-04-14 19:09:16
○ 2026-05-10 02:33:52

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
dk	b.nic.dk, c.nic.dk, h.nic.dk, l.nic.dk...	-
simitu.dk	ns01.one.com, ns02.one.com	-
smtpcloud.simitu.dk	ns3.electric.net, ns4.electric.net, ns2.electric.net, ns1.electric.net	-

✅ Authoritative Response

Server:208.70.135.83

NS records: ns3.electric.net, ns4.electric.net, ns2.electric.net, ns1.electric.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for smtpcloud.simitu.dk (unsigned zone)

⏱️ Timing

Total: 1141ms | Queries: -

📄 Records

Type	Count	Sample Data

Analysis

Name Servers

smtpcloud.simitu.dk delegates to four name servers: ns1.electric.net, ns2.electric.net, ns3.electric.net and ns4.electric.net.

smtpcloud.simitu.dk at least partially shares name servers with other domains, for instance 220.12.35.72.in-addr.arpa, cdmcontracting.com, kril-associates.com, 30.23.35.72.in-addr.arpa and 118.12.35.72.in-addr.arpa.

Host names with two IP numbers: ns1.electric.net points to 2a01:77c0:7135:4301::230 and 208.70.135.83; ns2.electric.net points to 2a01:77c0:1619:4100::230 and 192.162.219.248; ns3.electric.net points to 2a01:77c0:7135:4300::230 and 208.70.135.236; ns4.electric.net points to 2a01:77c0:1619:4101::230 and 192.162.219.153.

smtpcloud.simitu.dk - robtex.com