1234.co.jp

Valid Email Server
Domain Lookup › 1234.co.jp

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
1234.co.jp
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-03-24 07:00:45 UTC · ↺ Refresh

MX Hostnames

  • mail1001.onamae.ne.jp

MX Priorities

  • mail1001.onamae.ne.jp: 10

A / AAAA Records

  • 160.251.148.21 ↩ www1007.onamae.ne.jp

Mail Server IPs

  • 160.251.148.11 ↩ mail1001.onamae.ne.jp

SOA Record

Raw SOA ns-rs1.gmoserver.jp hostmaster.gmoserver.jp 1686613865 3600 900 604800 600
Primary NS (mname)
ns-rs1.gmoserver.jp
Admin Email (rname)
hostmaster@gmoserver.jp
Serial
1686613865
Refresh
3600s
Retry
900s
Expire
604800s
Minimum TTL
600s

Nameservers (NS)

ns-rs1.gmoserver.jp
ns-rs2.gmoserver.jp

SPF Record

✓ Soft Fail (~all)
v=spf1 include:_spf.onamae.ne.jp ~all
📊 DNS lookups: 1/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

✗ Missing

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

DKIM Selectors

✓ 1 found
default._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: default

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

All TXT Records

2 records
  • SPFv=spf1 include:_spf.onamae.ne.jp ~all
  • MS=ms23790235
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