Live data — DNS records and disposable check were just fetched and saved.
Domain Overview
DNS: ⚡ live
Checker: ⚡ live
support.sej.co.jp
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-18 09:02:19 UTC · ↺ Refresh
MX Hostnames
- t1secsigw04.index.or.jp
- t1secsigw03.index.or.jp
MX Priorities
- t1secsigw03.index.or.jp: 20
- t1secsigw04.index.or.jp: 10
A / AAAA Records
No A/AAAA records found.
Mail Server IPs
- 133.250.180.147 ↩ t1secsigw03.index.or.jp
- 133.250.180.148 ↩ t1secsigw04.index.or.jp
SOA Record
No SOA record found.
Nameservers (NS)
No nameservers found.
SPF Record
✓ Soft Fail (~all)
v=spf1 include:spfmag.7andi.co.jp include:spfseoa.7andi.co.jp include:cust-spf.exacttarget.com include:_spf.salesforce.com include:sendgrid.net include:fc3139.cuenote.jp ~all
📊 DNS lookups: 6/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
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
1 record- SPFv=spf1 include:spfmag.7andi.co.jp include:spfseoa.7andi.co.jp include:cust-spf.exacttarget.com include:_spf.salesforce.com include:sendgrid.net include:fc3139.cuenote.jp ~all
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