mail.4office.pro - robtex.com

mail.4office.pro

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
TXTmailru-verification: de5e58bac797a76d
TXTv=spf1 redirect=_spf.yandex.net
TXTyandex-verification: bee56b4396205cc2
TXTgoogle-site-verification=nDqpeshiROB8mM_RiyqO01xkpebe6eiweTxpX6vx8lk
SOAns3.yandex.rusysadmin@yandex.ru serial=1786560931

4office.pro

DNSSEC⚠️ Not signed
A46.29.118.154🇷🇺 ATLEX-AS46.29.118.0/23 Okay-Telecom Atlex.Ru
NSns1.you-online-dns.net ⭐
NSns.you-online-dns.net
MXmx.yandex.net ⭐
TXTv=spf1 include:_spf.host.webasyst.com include:_spf.yandex.net ~all
TXTyandex-verification: 3f691d53590beccd
SOAns.you-online-dns.netnoreply@host.webasyst.com 2026-08-10 #6
⚠️ On DNS blocklist: tif, tif.medium, tif.mini

Previously MX for

4office.pro

Same first word

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mail.boleslawiec.pl
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DNS History

2 records (1 active, 1 former)

201820192020202120222023202420252026A151.248.120.57CNAMEdomain.mail.yandex.net
○A151.248.120.572017-08-20 → 2017-08-20 · 2 obs
● 2017-08-20 03:19:48
○ 2026-08-12 19:27:34
●CNAMEdomain.mail.yandex.net2026-08-12 → 2026-08-12 · 1 obs
● 2026-08-12 19:27:34

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
proa0.pro.afilias-nst.info, a2.pro.afilias-nst.info, b0.pro.afilias-nst.org, b2.pro.afilias-nst.org...-
4office.prons1.you-online-dns.net, ns.you-online-dns.net-

✅ Authoritative Response

Server:178.33.57.195

NS records: ns1.you-online-dns.net, ns.you-online-dns.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for 4office.pro (unsigned zone)

⏱️ Timing

Total: 624ms | Queries: -

📄 Records

TypeCountSample Data
CNAME1domain.mail.yandex.net

Analysis

IP Addresses

mail.4office.pro points to the IP addresses 77.88.21.37 and 2a02:6b8::a4

Two other host names, along with namip.ru, mail.alteropower.net and mail.ya.ru, also share IP numbers with mail.4office.pro.

Name Servers

mail.4office.pro has two authoritative name servers — ns3.yandex.ru and ns4.yandex.ru.

mail.4office.pro shares its NS records with other domains, for example telemost.yandex.net, 190.8.141.in-addr.arpa, playhops.com and two others.

mail.4office.pro has name servers in common with a number of other domains — yandexcloud.net, haze.yandex.net, market.yandex.net and techadmin.yandex.net among them.

These name servers frequently co-occur with the name servers ns5.yandex.ru and ns6.yandex.ru.

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

The sole mail server for mail.4office.pro is mx.yandex.ru.

Among the domains sharing a mail server setup with mail.4office.pro are ru2.playnext.net, kyrier.by, ingta.ru and two others.

mx.yandex.ru carries two IP numbers: 77.88.21.249 and 2a02:6b8::311.