denka.co.jp

Valid Email Server
Domain Lookup › denka.co.jp

Domain Overview

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

Checked via [email protected] · 2026-03-18 17:13:42 UTC · ↺ Refresh

MX Hostnames

  • mxb-00a29301.gslb.pphosted.com
  • mxa-00a29301.gslb.pphosted.com

MX Priorities

  • mxa-00a29301.gslb.pphosted.com: 10
  • mxb-00a29301.gslb.pphosted.com: 10

A / AAAA Records

No A/AAAA records found.

Mail Server IPs

  • 66.159.251.229 ↩ mx0b-00a29301.pphosted.com
  • 208.56.8.3 ↩ mx0a-00a29301.pphosted.com

SOA Record

Raw SOA ns000.d-53.net dns-managers.iij.ad.jp 341 3600 600 604800 900
Primary NS (mname)
ns000.d-53.net
Admin Email (rname)
dns-managers@iij.ad.jp
Serial
341
Refresh
3600s
Retry
600s
Expire
604800s
Minimum TTL
900s

Nameservers (NS)

ns016-1uon361ramth5l5d.1.d-53.jp
ns016-1uon361ramth5l5d.1.d-53.net
ns016-1uon361ramth5l5d.1.d-53.info

SPF Record

✓ Soft Fail (~all)
v=spf1 include:spf.securemx.jp include:spf.protection.outlook.com include:spf-00a29301.pphosted.com include:spf-00a29302.pphosted.com +ip4:153.122.87.4 ~all
📊 DNS lookups: 4/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected]
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]

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
  • docusign=f02aa269-3496-4fc9-a0f3-1ee33c72f92f
  • google-site-verification=xjgTOnnO2x8PSWqnrCabdDTIEuaaC5nvtGLUf8FPbS0
  • SPFv=spf1 include:spf.securemx.jp include:spf.protection.outlook.com include:spf-00a29301.pphosted.com include:spf-00a29302.pphosted.com +ip4:153.122.87.4 ~all
  • asv=a214b8866be1e805c26fe4e3e60894b1
  • 7VWJI3LKCCYT7OQLACFQQDQG6S12H9JSJ6D0SHZM
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