Live data — DNS records and disposable check were just fetched and saved.
Domain Overview
DNS: ⚡ live
Checker: ⚡ live
polyphony.co.jp
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-05-21 17:40:38 UTC · ↺ Refresh
MX Hostnames
- fm.polyphony.co.jp
MX Priorities
- fm.polyphony.co.jp: 10
A / AAAA Records
No A/AAAA records found.
Mail Server IPs
- 210.164.8.207 (no PTR)
SOA Record
Raw SOA
ns.polyphony.co.jp domain-contact.polyphony.co.jp 2026040500 7201 3600 2419200 1200
Primary NS (mname)
ns.polyphony.co.jp
Admin Email (rname)
domain-contact@polyphony.co.jp
Serial
2026040500
Refresh
7201s
Retry
3600s
Expire
2419200s
Minimum TTL
1200s
Nameservers (NS)
ns.polyphony.co.jp
ns3.polyphony.co.jp
ns01.cims.jp
SPF Record
✓ Soft Fail (~all)
v=spf1 include:_spf.polyphony.co.jp
📊 DNS lookups: 1/10
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 detectedNo 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
3 records- adobe-idp-site-verification=2e50b5a1-858f-4d92-8b65-dce7eb1088f4
- apple-domain-verification=mliwITau1ps11u17
- SPFv=spf1 include:_spf.polyphony.co.jp
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