mail.stackoverflow.ir

`mail.stackoverflow.ir`

CNAME	`domain.mail.yandex.net`
CNAME	`mail.yandex.ru`
DNSSEC	⚠️ Not signed
A	2a02:6b8::a4^{🇷🇺 TELETECH2a02:6b8::/32 Yandex network}
		PTR	`mail-yandex-ru-production-external.stable.qloud-b.yandex.net`
A	77.88.21.37^{🇷🇺 TELETECH77.88.0.0/18 Yandex enterprise network}
NS	`ns3.yandex.ru` ⭐
		A	2a02:6b8::1001^{🇷🇺 TELETECH2a02:6b8::/32 Yandex network}
			PTR	`ns3.yandex.ru`
		A	87.250.250.1^{🇷🇺 TELETECH87.250.224.0/19 Yandex network}
			PTR	`ns3.yandex.ru`
NS	`ns4.yandex.ru`
		A	2a02:6b8:0:1::1:1^{🇷🇺 TELETECH2a02:6b8::/32 Yandex network}
			PTR	`ns4.yandex.ru`
		A	77.88.21.1^{🇷🇺 TELETECH77.88.0.0/18 Yandex enterprise network}
			PTR	`ns4.yandex.ru`
MX	`mx.yandex.ru` ⭐
		A	2a02:6b8::311^{🇷🇺 TELETECH2a02:6b8::/32 Yandex network}
			PTR	`mxfront.stable.qloud-b.yandex.net`
		A	77.88.21.249^{🇷🇺 TELETECH77.88.0.0/18 Yandex enterprise network}
			PTR	`mxfront.stable.qloud-b.yandex.net`
TXT	`yandex-verification: bee56b4396205cc2`
TXT	`google-site-verification=nDqpeshiROB8mM_RiyqO01xkpebe6eiweTxpX6vx8lk`
TXT	`mailru-verification: de5e58bac797a76d`
TXT	`v=spf1 redirect=_spf.yandex.net`
SOA	`ns3.yandex.ru`sysadmin@yandex.ru serial=1785528698

`stackoverflow.ir`

	DNSSEC	⚠️ Not signed
	A	207.182.142.171^{🇺🇸 AS10297207.182.128.0/19 RR-RC-Enet-Columbus}
	NS	`fred.ns.cloudflare.com` ⭐
	NS	`lola.ns.cloudflare.com`
	MX	`mx.yandex.net` ⭐
	TXT	`v=spf1 a mx include:spf.mail.todayluckyday.com ~all`
	TXT	`v=spf1 redirect=_spf.yandex.net`
	TXT	`yandex-verification: 777858fe5a9c909a`
	SOA	`fred.ns.cloudflare.com`dns@cloudflare.com serial=2409995621

Previously MX for

stackoverflow.ir

Same first word

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mail.yahoo

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mail.ps

mail.edu.ee

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mail.gi

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mail.k12.vt.us

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mail.fage

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mail.et

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DNS History

2 records (1 active, 1 former)

○A23.91.123.1292015-05-24 → 2015-05-24 · 3 obs

● 2015-05-24 09:15:16
○ 2026-06-14 00:03:16
○ 2026-07-31 20:11:40

●CNAMEdomain.mail.yandex.net2026-06-14 → 2026-07-31 · 2 obs

● 2026-06-14 00:03:16
● 2026-07-31 20:11:40

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
ir	a.nic.ir, d.nic.ir, c.nic.ir, b.nic.ir	8 records
stackoverflow.ir	lola.ns.cloudflare.com, fred.ns.cloudflare.com	-

✅ Authoritative Response

Server:172.64.32.132

NS records: lola.ns.cloudflare.com, fred.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for stackoverflow.ir (unsigned zone)

⏱️ Timing

Total: 963ms | Queries: -

📄 Records

Type	Count	Sample Data
CNAME	1	`domain.mail.yandex.net`

📌 Glue Records Collected

Total: 8

In-bailiwick: 8 (d.nic.ir, c.nic.ir, b.nic.ir...)

Analysis

IP Addresses

mail.stackoverflow.ir has two IP addresses: 77.88.21.37 and 2a02:6b8::a4

Additional host names — mail.yandex.lv, mail.yandex.lt, namip.ru and two others — share IP numbers with mail.stackoverflow.ir.

Name Servers

mail.stackoverflow.ir has two authoritative name servers — ns3.yandex.ru and ns4.yandex.ru.

mail.stackoverflow.ir shares its name server setup with other domains, including 219.180.213.in-addr.arpa, push.yandex.kz, 132.158.93.in-addr.arpa and two others.

mail.stackoverflow.ir has some name servers in common with other domains such as mon.yandex.net, net.yandex.net and qloud.yandex.net

Both ns3.yandex.ru and ns4.yandex.ru have two IP addresses each. ns3.yandex.ru resolves to 87.250.250.1 and 2a02:6b8::1001; ns4.yandex.ru resolves to 77.88.21.1 and 2a02:6b8:0:1::1:1.

Mail Servers

mail.stackoverflow.ir has one mail server: mx.yandex.ru.

mail.stackoverflow.ir shares the same mail server setup as other domains, including master-elec.ru, caddesign.ru, prodpo.ru and two others.

mail.stackoverflow.ir shares mail servers — at least in part — with other domains, including code-pilots.com, netragroup.ru, cobaka.by and two others.

These mail servers are frequently seen alongside the mail servers mx.yandex.net.

mx.yandex.ru directs to two IP numbers, 77.88.21.249 and 2a02:6b8::311.

mail.stackoverflow.ir - dns.ninja