yokou.co.jp

Valid Email Server
Domain Lookup › yokou.co.jp

Domain Overview

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

Checked via [email protected] · 2026-03-18 09:00:37 UTC · ↺ Refresh

MX Hostnames

  • mail.yokou.co.jp
  • mail.yokou.co.jp

MX Priorities

  • mail.yokou.co.jp: 0
  • mail.yokou.co.jp: 10

A / AAAA Records

  • 133.167.102.190 ↩ win31.willnet.ad.jp

Mail Server IPs

  • 163.43.91.53 ↩ mail01.willnet.org

SOA Record

Raw SOA ns1.willnet.ne.jp hostmaster.willnet.ne.jp 2025061200 10800 3600 604800 60
Primary NS (mname)
ns1.willnet.ne.jp
Admin Email (rname)
hostmaster@willnet.ne.jp
Serial
2025061200
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
60s

Nameservers (NS)

ns1.willnet.ne.jp
ns2.willnet.ne.jp

SPF Record

✓ Soft Fail (~all)
v=spf1 a mx include:spf01.willnet.ad.jp ~all
📊 DNS lookups: 3/10
~ 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

1 record
  • SPFv=spf1 a mx include:spf01.willnet.ad.jp ~all
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