tarekatsu.jp

Valid Email Server
Domain Lookup › tarekatsu.jp

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
tarekatsu.jp
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-24 06:59:51 UTC · ↺ Refresh

MX Hostnames

  • tarekatsu.jp

MX Priorities

  • tarekatsu.jp: 10

A / AAAA Records

  • 133.167.8.144 ↩ www5204.sakura.ne.jp

Mail Server IPs

  • 133.167.8.144 ↩ www5204.sakura.ne.jp

SOA Record

Raw SOA master.dns.ne.jp tech.sakura.ad.jp 2026012702 3600 900 3600000 3600
Primary NS (mname)
master.dns.ne.jp
Admin Email (rname)
tech@sakura.ad.jp
Serial
2026012702
Refresh
3600s
Retry
900s
Expire
3600000s
Minimum TTL
3600s

Nameservers (NS)

ns1.dns.ne.jp
ns2.dns.ne.jp

SPF Record

✓ Soft Fail (~all)
v=spf1 a:www5204.sakura.ne.jp mx ~all
📊 DNS lookups: 2/10
~ 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:www5204.sakura.ne.jp mx ~all
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