smtp.brain.jp - robtex.com

smtp.brain.jp

DNSSEC⚠️ Not signed
A49.212.65.203🇯🇵 SAKURA-A49.212.65.0/24 (ISHIKARI) SAKURA Internet // HOKKAIDO JAPAN BACKBONE Grand Front Osaka Tower A 35F, 4-20 Ofukacho, Kita-ku, Osaka-shi, Osaka 530-0011, Japan
PTR203.65.212.49.static.www2875m.sakura.ne.jp

brain.jp

DNSSEC⚠️ Not signed
A49.212.65.203🇯🇵 SAKURA-A49.212.65.0/24 (ISHIKARI) SAKURA Internet // HOKKAIDO JAPAN BACKBONE Grand Front Osaka Tower A 35F, 4-20 Ofukacho, Kita-ku, Osaka-shi, Osaka 530-0011, Japan
NS01.dnsv.jp ⭐
NS02.dnsv.jp
NS03.dnsv.jp ⚠️ Not in parent delegation
NS04.dnsv.jp ⚠️ Not in parent delegation
MXsmtp.brain.jp ⭐
TXTMS=ms37851475
TXTv=spf1 +ip4:49.212.65.203/32 +ip4:49.212.65.75/32 +ip4:153.120.85.146/32 +ip4...
SOA01.dnsv.jphostmaster@dnsv.jp serial=1754033803

MX for

brain.jp

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DNS History

1 record (1 active, 0 former)

20162017201820192020202120222023202420252026A49.212.65.203
●A49.212.65.2032015-06-10 → 2026-06-06 · 2 obs
● 2015-06-10 11:22:20
● 2026-06-06 17:58:10

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
jpa.dns.jp, b.dns.jp, c.dns.jp, d.dns.jp...-
brain.jp02.dnsv.jp, 01.dnsv.jp3 records

✅ Authoritative Response

Server:157.7.33.53

NS records: 02.dnsv.jp, 01.dnsv.jp

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for brain.jp (unsigned zone)

⏱️ Timing

Total: 806ms | Queries: -

📄 Records

TypeCountSample Data
A149.212.65.203

📌 Glue Records Collected

Total: 3

Out-of-bailiwick: 3 (01.dnsv.jp, 01.dnsv.jp, 02.dnsv.jp)

Analysis

Mail Server Role

smtp.brain.jp is used as a mail server for brain.jp.

IP Addresses

smtp.brain.jp directs to one IP number, which is 49.212.65.203.

Among the host names that share IP numbers with smtp.brain.jp are eleshin.org, brain.jp, 203.65.212.49.static.www2875m.sakura.ne.jp and two others.