mail.rid2550.com - robtex.com

mail.rid2550.com

DNSSEC⚠️ Not signed
A121.111.246.237🇯🇵 KDDI121.111.224.0/19

rid2550.com

DNSSEC⚠️ Not signed
A20.48.104.132🇯🇵 Microsoft20.48.0.0/12
NSns1.netfrontier.info ⭐
NSns1.nfdns.net
NSns2.netfrontier.info
MXmail.rid2550.com ⭐
TXTv=spf1 +ip4:121.111.246.0/24 +ip4:20.48.104.132 ~all
SOAns1.netfrontier.inforoot@rid2550.com 2022-04-28 #1

MX for

rid2550.com

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DNS History

1 record (1 active, 0 former)

A121.111.246.237
●A121.111.246.2372026-04-25 → 2026-04-27 · 2 obs
● 2026-04-25 22:05:20
● 2026-04-27 19:45:26

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coma.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...-
rid2550.comns1.netfrontier.info, ns2.netfrontier.info, ns1.nfdns.net-

✅ Authoritative Response

Server:121.111.246.199

NS records: ns1.netfrontier.info, ns2.netfrontier.info, ns1.nfdns.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for rid2550.com (unsigned zone)

⏱️ Timing

Total: 4818ms | Queries: -

📄 Records

TypeCountSample Data
A1121.111.246.237

Analysis

Mail Server Role

mail.rid2550.com is the mail server for rid2550.com.

IP Addresses

mail.rid2550.com resolves to one IP number: 121.111.246.237.

Other host names, for instance mail.sh-jsys.jp, mail3.zead.co.jp, mail.sa-k.jp and mail.kantou-carbon.co.jp share IP numbers with mail.rid2550.com.