redhorse.co.jp

Valid Email Server
Domain Lookup › redhorse.co.jp

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
redhorse.co.jp
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-04-04 02:03:10 UTC · ↺ Refresh

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MX Hostnames

  • alt4.aspmx.l.google.com
  • aspmx.l.google.com
  • alt2.aspmx.l.google.com
  • alt3.aspmx.l.google.com
  • alt1.aspmx.l.google.com

MX Priorities

  • alt4.aspmx.l.google.com: 10
  • aspmx.l.google.com: 1
  • alt1.aspmx.l.google.com: 5
  • alt2.aspmx.l.google.com: 5
  • alt3.aspmx.l.google.com: 10

A / AAAA Records

  • 183.181.88.157

Mail Server IPs

  • 173.194.76.26 ↩ ws-in-f26.1e100.net
  • 2a00:1450:400c:c00::1b ↩ ws-in-x1b.1e100.net
  • 142.251.111.27 ↩ bk-in-f27.1e100.net
  • 2607:f8b0:4004:c0b::1a ↩ bj-in-f26.1e100.net
  • 108.177.123.27 ↩ lcscld-in-f27.1e100.net
  • 2800:3f0:4003:c0f::1a (no PTR)
  • 172.253.116.27 ↩ dj-in-f27.1e100.net
  • 2a00:1450:400b:c02::1b ↩ dj-in-f27.1e100.net
  • 192.178.223.27 ↩ yulhrs-in-f27.1e100.net
  • 2a00:1450:4009:c0f::1a ↩ yulhrs-in-f26.1e100.net

SOA Record

Raw SOA 01.dnsv.jp hostmaster.dnsv.jp 1765518770 3600 900 604800 300
Primary NS (mname)
01.dnsv.jp
Admin Email (rname)
hostmaster@dnsv.jp
Serial
1765518770
Refresh
3600s
Retry
900s
Expire
604800s
Minimum TTL
300s

Nameservers (NS)

01.dnsv.jp
02.dnsv.jp
03.dnsv.jp
04.dnsv.jp

SPF Record

✓ Soft Fail (~all)
v=spf1 include:spfyh1.redhorse.co.jp include:spfxs1.redhorse.co.jp include:mdfunny.maildealer.jp include:spf.betrend.com include:_spf.google.com ~all
📊 DNS lookups: 5/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

✗ Missing

No DMARC record — emails cannot be rejected on auth failure.

DKIM Selectors

✗ None detected

No DKIM records found for common selectors — your provider may use a custom selector name.

Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses

All TXT Records

5 records
  • workplace-domain-verification=X6kHjCaa7xXBx4szpTBDcvObKVT4Ty
  • 3393653
  • hibp-verify=dweb_5u5do08t942orp7qfm8ms8pj
  • trend-micro-v1-domain-verification.8e054239a9d935399fb0652662599f36=e5ace18d-a8e5-4eba-b93e-57ab8dc84992
  • SPFv=spf1 include:spfyh1.redhorse.co.jp include:spfxs1.redhorse.co.jp include:mdfunny.maildealer.jp include:spf.betrend.com include:_spf.google.com ~all
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