architek.co.jp

Valid Email Server
Domain Lookup › architek.co.jp

Domain Overview

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

Checked via [email protected] · 2026-03-28 00:41:21 UTC · ↺ Refresh

MX Hostnames

  • architek.sakura.ne.jp
  • mail.architek.co.jp

MX Priorities

  • architek.sakura.ne.jp: 1
  • mail.architek.co.jp: 20

A / AAAA Records

  • 157.7.244.121 ↩ v157-7-244-121.myvps.jp

Mail Server IPs

  • 163.43.80.81 ↩ www3771.sakura.ne.jp

SOA Record

Raw SOA 01.dnsv.jp hostmaster.dnsv.jp 1752853097 3600 900 604800 300
Primary NS (mname)
01.dnsv.jp
Admin Email (rname)
hostmaster@dnsv.jp
Serial
1752853097
Refresh
3600s
Retry
900s
Expire
604800s
Minimum TTL
300s

Nameservers (NS)

01.dnsv.jp
02.dnsv.jp
03.dnsv.jp
04.dnsv.jp

SPF Record

✓ Strict (-all)
v=spf1 ip4:163.43.80.81 -all
📊 DNS lookups: 0/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ Missing

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

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

2 records
  • SPFv=spf1 ip4:163.43.80.81 -all
  • google-site-verification=5z47EF0aLgIJshbOmUdzqLd-q1t7vt5b8-qBzgbj5dc
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