🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`mailstack.ru`

DNSSEC	⚠️ Not signed
NS	`dns1.p01.nsone.net` ⭐ ⚠️ Not in zone NS records
		A	2620:4d:4000:6259:7:1:0:1^{🇺🇸 NSONE2620:4d:4000::/48 PNAP-ACS nsone-1}
			PTR	`dns1.p01.nsone.net`
		A	198.51.44.1^{🇺🇸 NSONE198.51.44.0/24}
			PTR	`dns1.p01.nsone.net`
NS	`dns1.p06.nsone.net` ⚠️ Not in parent delegation
		A	2620:4d:4000:6259:7:6:0:1^{🇺🇸 NSONE2620:4d:4000::/48 PNAP-ACS nsone-1}
			PTR	`dns1.p06.nsone.net`
		A	198.51.44.6^{🇺🇸 NSONE198.51.44.0/24}
			PTR	`dns1.p06.nsone.net`
NS	`dns2.p01.nsone.net` ⚠️ Not in zone NS records
		A	2a00:edc0:6259:7:1::2^{🇺🇸 NSONE2a00:edc0:6259::/48 NS1-2}
			PTR	`dns2.p01.nsone.net`
		A	198.51.45.1^{🇺🇸 NSONE198.51.45.0/24}
			PTR	`dns2.p01.nsone.net`
NS	`dns2.p06.nsone.net` ⚠️ Not in parent delegation
		A	2a00:edc0:6259:7:6::2^{🇺🇸 NSONE2a00:edc0:6259::/48 NS1-2}
			PTR	`dns2.p06.nsone.net`
		A	198.51.45.6^{🇺🇸 NSONE198.51.45.0/24}
			PTR	`dns2.p06.nsone.net`
NS	`dns3.p01.nsone.net` ⚠️ Not in zone NS records
		A	2620:4d:4000:6259:7:1:0:3^{🇺🇸 NSONE2620:4d:4000::/48 PNAP-ACS nsone-1}
			PTR	`dns3.p01.nsone.net`
		A	198.51.44.65^{🇺🇸 NSONE198.51.44.0/24}
			PTR	`dns3.p01.nsone.net`
NS	`dns3.p06.nsone.net` ⚠️ Not in parent delegation
		A	2620:4d:4000:6259:7:6:0:3^{🇺🇸 NSONE2620:4d:4000::/48 PNAP-ACS nsone-1}
			PTR	`dns3.p06.nsone.net`
		A	198.51.44.70^{🇺🇸 NSONE198.51.44.0/24}
			PTR	`dns3.p06.nsone.net`
NS	`dns4.p01.nsone.net` ⚠️ Not in zone NS records
		A	2a00:edc0:6259:7:1::4^{🇺🇸 NSONE2a00:edc0:6259::/48 NS1-2}
			PTR	`dns4.p01.nsone.net`
		A	198.51.45.65^{🇺🇸 NSONE198.51.45.0/24}
			PTR	`dns4.p01.nsone.net`
NS	`dns4.p06.nsone.net` ⚠️ Not in parent delegation
		A	2a00:edc0:6259:7:6::4^{🇺🇸 NSONE2a00:edc0:6259::/48 NS1-2}
			PTR	`dns4.p06.nsone.net`
		A	198.51.45.70^{🇺🇸 NSONE198.51.45.0/24}
			PTR	`dns4.p06.nsone.net`
SOA	`dns1.p01.nsone.net`domains+netlify@netlify.com serial=1774225575

`ru`

	DNSSEC	⚠️ Not signed
	NS	`a.dns.ripn.net` ⭐
	NS	`b.dns.ripn.net`
	NS	`c.tld-servers.ru`
	NS	`d.dns.ripn.net`
	NS	`e.dns.ripn.net`
	NS	`f.dns.ripn.net`
	SOA	`a.dns.ripn.net`hostmaster@ripn.net serial=4070444

Same first word

mailstack.live

mailstack.tech

mailstack.my.id

mailstack.net

mailstack.dev

mailstack.it

mailstack.ru

mailstack.online

mailstack.com.lk

mailstack.world

mailstack.xyz

mailstack.info

mailstack.in

mailstack.website

mailstack.eu

mailstack.org

mailstack.store

mailstack.com

mailstack.ph

mailstack.ie

Similar names

Previous names

mailsolo.ru

mailsopen.ru

mailsort.ru

mailsoud.ru

mailsp.ru

mailspace.ru

mailspaice.ru

mailspam.ru

mailspect.ru

mailspeed.ru

mailspon.ru

mailsport.ru

mailspy.ru

mailsrv.ru

mailsrvr.ru

mailss.ru

mailssl.ru

mailsstorage.ru

mailst.ru

mailsta.ru

Next names

DNS History

11 records (8 active, 3 former)

●NSdns1.p01.nsone.net2026-09-16 → 2026-09-21 · 2 obs

● 2026-09-16 10:56:58
● 2026-09-21 14:59:34

●NSdns1.p06.nsone.net2026-09-16 → 2026-09-21 · 2 obs

● 2026-09-16 10:56:58
● 2026-09-21 14:59:34

●NSdns2.p01.nsone.net2026-09-16 → 2026-09-21 · 2 obs

● 2026-09-16 10:56:58
● 2026-09-21 14:59:34

●NSdns2.p06.nsone.net2026-09-16 → 2026-09-21 · 2 obs

● 2026-09-16 10:56:58
● 2026-09-21 14:59:34

●NSdns3.p01.nsone.net2026-09-16 → 2026-09-21 · 2 obs

● 2026-09-16 10:56:58
● 2026-09-21 14:59:34

●NSdns3.p06.nsone.net2026-09-16 → 2026-09-21 · 2 obs

● 2026-09-16 10:56:58
● 2026-09-21 14:59:34

●NSdns4.p01.nsone.net2026-09-16 → 2026-09-21 · 2 obs

● 2026-09-16 10:56:58
● 2026-09-21 14:59:34

●NSdns4.p06.nsone.net2026-09-16 → 2026-09-21 · 2 obs

● 2026-09-16 10:56:58
● 2026-09-21 14:59:34

○MXmx.yandex.net2026-09-16 → 2026-09-16 · 3 obs

● 2026-09-16 10:56:58
○ 2026-09-18 05:44:14
○ 2026-09-21 14:59:34

○A35.157.26.1352026-09-16 → 2026-09-16 · 3 obs

● 2026-09-16 10:56:58
○ 2026-09-18 05:44:14
○ 2026-09-21 14:59:34

○A63.176.8.2182026-09-16 → 2026-09-16 · 3 obs

● 2026-09-16 10:56:58
○ 2026-09-18 05:44:14
○ 2026-09-21 14:59:34

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
ru	a.dns.ripn.net, b.dns.ripn.net, c.tld-servers.ru, d.dns.ripn.net...	-
mailstack.ru	dns2.p01.nsone.net, dns1.p01.nsone.net, dns4.p01.nsone.net, dns3.p01.nsone.net	-

✅ Authoritative Response

Server:198.51.44.65

NS records: dns2.p01.nsone.net, dns1.p01.nsone.net, dns4.p01.nsone.net, dns3.p01.nsone.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

Root DNSKEY fetch failed: Error: connect EADDRNOTAVAIL 198.41.0.4:53 - Local (0.0.0.0:0)

⏱️ Timing

Total: 1849ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	4	`dns1.p06.nsone.net, dns2.p06.nsone.net...`
SOA	1	`dns1.p01.nsone.net domains+netlify.netli`

Analysis

Name Servers

mailstack.ru is delegated to 8 name servers: dns1.p01.nsone.net, dns2.p01.nsone.net, dns3.p01.nsone.net and 5 other.

At least some of mailstack.ru's name servers are shared with other domains, for example hipsforactivewomen.org, ortho-neurologics.net, adventuresinhorsemanship.com and two more.

These name servers tend to co-occur with ns01.squarespacedns.com, ns02.squarespacedns.com, ns03.squarespacedns.com and 7 other name servers in the same DNS delegations.

Host names with two IP numbers:

dns1.p01.nsone.net points to 198.51.44.1 and 2620:4d:4000:6259:7:1:0:1.

dns2.p01.nsone.net points to 198.51.45.1 and 2a00:edc0:6259:7:1::2.

dns3.p01.nsone.net points to 198.51.44.65 and 2620:4d:4000:6259:7:1:0:3.

dns4.p01.nsone.net points to 198.51.45.65 and 2a00:edc0:6259:7:1::4.

dns1.p06.nsone.net points to 198.51.44.6 and 2620:4d:4000:6259:7:6:0:1.

dns2.p06.nsone.net points to 198.51.45.6 and 2a00:edc0:6259:7:6::2.

dns3.p06.nsone.net points to 198.51.44.70 and 2620:4d:4000:6259:7:6:0:3.

dns4.p06.nsone.net points to 198.51.45.70 and 2a00:edc0:6259:7:6::4.