sej.co.jp

Valid Email Server
Domain Lookup › sej.co.jp

Domain Overview

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

Checked via [email protected] · 2026-03-18 09:02:09 UTC · ↺ Refresh

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MX Hostnames

  • i801.mailsecurity-nec.jp

MX Priorities

  • i801.mailsecurity-nec.jp: 10

A / AAAA Records

No A/AAAA records found.

Mail Server IPs

  • 202.247.61.14 ↩ pim801.mailsecurity-nec.jp

SOA Record

Raw SOA ns1.index.jp hostmaster.index.or.jp 2026031801 7200 1800 2419200 3600
Primary NS (mname)
ns1.index.jp
Admin Email (rname)
hostmaster@index.or.jp
Serial
2026031801
Refresh
7200s
Retry
1800s
Expire
2419200s
Minimum TTL
3600s

Nameservers (NS)

ns1.index.jp
ns2.index.jp
ns3.index.jp

SPF Record

✓ Soft Fail (~all)
v=spf1 include:spfmag.7andi.co.jp include:spfseoa.7andi.co.jp include:cust-spf.exacttarget.com include:sendgrid.net include:fc3139.cuenote.jp ~all
📊 DNS lookups: 5/10
~ 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 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
  • pzp39WtJJg8Z97EsBliBs3Asm66ZHe
  • 53Kq82Hqgw1AiPEZV9KC2mn6CSpcnn
  • SPFv=spf1 include:spfmag.7andi.co.jp include:spfseoa.7andi.co.jp include:cust-spf.exacttarget.com include:sendgrid.net include:fc3139.cuenote.jp ~all
  • facebook-domain-verification=5pumf7a15itod6xntt7th2jbkzp611
  • _globalsign-domain-verification=0-sQPfpKL_z5ODNPOUZX2khQ3r3-s70LkLoyz1b17d
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