Domain Overview
DNS: ✓ just now
Checker: ✓ just now
tmn.sk
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-06-02 02:35:57 UTC · ↺ Refresh
MX Hostnames
- ns2.pipni.cz
- mail.tmn.sk
MX Priorities
- ns2.pipni.cz: 20
- mail.tmn.sk: 10
A / AAAA Records
- 93.185.104.14 ↩ www4.pipni.cz
Mail Server IPs
- 83.167.247.20 ↩ ns2.pipni.cz
- 2a01:430:220::3 ↩ ns2.pipni.cz
- 93.185.104.6 ↩ mail2.pipni.cz
SOA Record
Raw SOA
ns.pipni.cz pipni.pipni.cz 484945817 10800 1800 604800 86400
Primary NS (mname)
ns.pipni.cz
Admin Email (rname)
pipni@pipni.cz
Serial
484945817
Refresh
10800s
Retry
1800s
Expire
604800s
Minimum TTL
86400s
Nameservers (NS)
ns.pipni.cz
ns2.pipni.cz
SPF Record
✗ MissingNo SPF record — domain is unprotected against spoofing.
⚠ No SPF record found. Email servers cannot verify authorized senders.
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✓ 1 found
dkim._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: dkim
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
No TXT records found.
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 · Customize →
See demo & docs
Deep verification
Full email verification for tmn.sk
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits