mail.rt2b.com - dns.ninja

mail.rt2b.com

CNAMEdomain.mail.yandex.net
CNAMEmail.yandex.ru
DNSSEC⚠️ Not signed
A2a02:6b8::a4🇷🇺 TELETECH2a02:6b8::/32 Yandex network
PTRmail-yandex-ru-production-external.stable.qloud-b.yandex.net
A77.88.21.37🇷🇺 TELETECH77.88.0.0/18 Yandex enterprise network
NSns3.yandex.ru ⭐
A2a02:6b8::1001🇷🇺 TELETECH2a02:6b8::/32 Yandex network
PTRns3.yandex.ru
A87.250.250.1🇷🇺 TELETECH87.250.224.0/19 Yandex network
PTRns3.yandex.ru
NSns4.yandex.ru
A2a02:6b8:0:1::1:1🇷🇺 TELETECH2a02:6b8::/32 Yandex network
PTRns4.yandex.ru
A77.88.21.1🇷🇺 TELETECH77.88.0.0/18 Yandex enterprise network
PTRns4.yandex.ru
MXmx.yandex.ru ⭐
A2a02:6b8::311🇷🇺 TELETECH2a02:6b8::/32 Yandex network
PTRmxfront.stable.qloud-b.yandex.net
A77.88.21.249🇷🇺 TELETECH77.88.0.0/18 Yandex enterprise network
PTRmxfront.stable.qloud-b.yandex.net
TXTv=spf1 redirect=_spf.yandex.net
TXTyandex-verification: bee56b4396205cc2
TXTgoogle-site-verification=nDqpeshiROB8mM_RiyqO01xkpebe6eiweTxpX6vx8lk
TXTmailru-verification: de5e58bac797a76d
SOAns3.yandex.rusysadmin@yandex.ru serial=1783473702

rt2b.com

DNSSEC⚠️ Not signed
A91.218.228.19🇷🇺 EUROBYTE91.218.228.0/23
NSns1.ihc.ru ⭐
NSns2.ihc.ru
MXmx.yandex.ru ⭐
MXmail.rt2b.com(20)
TXTv=spf1 redirect=_spf.yandex.net
SOAns1.ihc.ruinfo@ihc.ru 2017-01-28 #1

MX for

rt2b.com

Same first word

mail.dp.ua
mail.myjino.ru
mail.space
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mail.rr.gov.br
mail.read-books.org
mail.ilovecollege.info
mail.gmx
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mail.hashbang.sh
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mail.direct
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mail.energy
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mail.online
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mail.ls
mail.app
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DNS History

1 record (1 active, 0 former)

CNAMEdomain.mail.yandex.net
●CNAMEdomain.mail.yandex.net2026-03-24 → 2026-07-08 · 2 obs
● 2026-03-24 10:53:16
● 2026-07-08 01:22:42

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
comm.gtld-servers.net, h.gtld-servers.net, e.gtld-servers.net, l.gtld-servers.net...-
rt2b.comns1.ihc.ru, ns2.ihc.ru-

✅ Authoritative Response

Server:46.254.22.38

NS records: ns1.ihc.ru, ns2.ihc.ru

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for rt2b.com (unsigned zone)

⏱️ Timing

Total: 933ms | Queries: -

📄 Records

TypeCountSample Data
CNAME1domain.mail.yandex.net

Analysis

Mail Server Role

Mail for rt2b.com is routed through the mail server mail.rt2b.com.

mx.yandex.ru is often seen acting as a mail server in combination with mail.rt2b.com.

IP Addresses

mail.rt2b.com has two IP addresses: 77.88.21.37 and 2a02:6b8::a4

namip.ru, mail.yandex.fr, mail.sozidatel.com plus two other host names have IP numbers in common with mail.rt2b.com.

Name Servers

DNS delegation for mail.rt2b.com points to two name servers: ns3.yandex.ru and ns4.yandex.ru.

The name server configuration of mail.rt2b.com is shared with other domains, for instance 148.158.93.in-addr.arpa, eda.yandex, 217.180.213.in-addr.arpa and two others.

At least some of mail.rt2b.com's name servers are shared with other domains, for example cern.yandex.net and pk.yandex-team.ru.

These name servers tend to be used in conjunction with the name servers ns3.yandex.net.

ns3.yandex.ru directs to 87.250.250.1 and 2a02:6b8::1001. ns4.yandex.ru directs to 77.88.21.1 and 2a02:6b8:0:1::1:1. Each host name carries two IP addresses.

Mail Servers

mail.rt2b.com uses one mail server — mx.yandex.ru.

The mail server setup of mail.rt2b.com matches that of other domains such as vnebo.ru, 250r.ru, ctrm.ru and two others.

At least some of the mail servers used by mail.rt2b.com are shared with other domains: golf4.ru, svoy-pitomnik.ru, gorod24.online and two others among them.

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