mail.os21.co - robtex.com

mail.os21.co

DNSSEC⚠️ Not signed
A122.199.230.204🇰🇷 NEXG-AS-KR122.199.230.0/24
PTRstatic.122-199-230-204.nexg.net

os21.co

DNSSEC⚠️ Not signed
A122.199.230.204🇰🇷 NEXG-AS-KR122.199.230.0/24
NSns1.vtopia.co.kr ⭐
NSns2.vtopia.co.kr
MXmail.os21.co ⭐
TXTv=SPF1 ip4:122.199.230.204 -all
SOAns1.vtopia.co.krnoc@vtopia.co.kr 2008-04-03 #1

MX for

os21.co

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DNS History

2 records (1 active, 1 former)

20162017201820192020202120222023202420252026A122.199.230.204202.163.135.204
●A122.199.230.2042026-02-24 → 2026-05-10 · 3 obs
○ 2016-12-06 07:11:34
● 2026-02-24 06:28:28
● 2026-05-10 15:05:44
○A202.163.135.2042015-04-19 → 2016-12-06 · 4 obs
● 2015-04-19 06:23:46
● 2016-12-06 07:11:34
○ 2026-02-24 06:28:28
○ 2026-05-10 15:05:44

🔍 DNS Trace

Analysis

Mail Server Role

mail.os21.co serves as a mail server for os21.co.

IP Addresses

mail.os21.co resolves to one IP number: 122.199.230.204.

Other host names, for example os21.co, share IP numbers with mail.os21.co.