Domain Overview
DNS: ✓ 19h ago
Checker: ✓ 19h ago
za.tnc.ne.jp
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-05-20 12:17:20 UTC · ↺ Refresh
MX Hostnames
- mx6.basmail.jp
- mx.basmail.jp
MX Priorities
- mx.basmail.jp: 10
- mx6.basmail.jp: 10
A / AAAA Records
No A/AAAA records found.
Mail Server IPs
- 27.121.3.192 ↩ tmp-mx.basmail.jp
- 2403:7800:5021::192 ↩ tmp-mx6.basmail.jp
SOA Record
Raw SOA
dns0.tokai.or.jp postmaster.dns0.tokai.or.jp 20250403 3600 300 1209600 86400
Primary NS (mname)
dns0.tokai.or.jp
Admin Email (rname)
postmaster@dns0.tokai.or.jp
Serial
20250403
Refresh
3600s
Retry
300s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
dns1.tokai.or.jp
dns2.tokai.or.jp
SPF Record
✓ Soft Fail (~all)
v=spf1 include:spf01.za.tnc.ne.jp include:spf.basmail.jp ~all
📊 DNS lookups: 2/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; sp=none; rua=mailto:[email protected]
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: none
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:spf01.za.tnc.ne.jp include:spf.basmail.jp ~all
Free · No signup required
Add email validation to your forms
Block disposable emails, validate MX records, detect role accounts — unlimited, forever free.
<script src="https://check.verifyswift.com/"></script>
One line of code · Works on any site
See demo & docs
Deep verification
Full email verification for za.tnc.ne.jp
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits