Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
milosryc.cz
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-30 19:33:37 UTC · ↺ Refresh
MX Hostnames
- 15mx.zoner.com
- relay.zoner.com
- 10mx.zoner.com
MX Priorities
- relay.zoner.com: 1
- 10mx.zoner.com: 10
- 15mx.zoner.com: 15
A / AAAA Records
- 217.198.114.21 ↩ umbriel.zarea.net
- 2a00:19a0:3:72::d9c6:7215:1 ↩ umbriel.zarea.net
Mail Server IPs
- 217.198.120.100 ↩ relay.zoner.com
- 217.198.120.36 ↩ 10mx.zoner.com
- 81.0.233.6 ↩ 15mx.zoner.com
SOA Record
Raw SOA
ns1.regzone.cz administrator.czechia.cz 2026030902 10800 1800 1814400 3600
Primary NS (mname)
ns1.regzone.cz
Admin Email (rname)
administrator@czechia.cz
Serial
2026030902
Refresh
10800s
Retry
1800s
Expire
1814400s
Minimum TTL
3600s
Nameservers (NS)
ns1.regzone.info
ns1.regzone.cz
ns1.regzone.de
SPF Record
✓ Strict (-all)
v=spf1 include:spf-zoner-zmail.zoner.com include:spf.reservanto.cz -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✓ 2 found
s1._domainkey
s2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: s1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
1 record- SPFv=spf1 include:spf-zoner-zmail.zoner.com include:spf.reservanto.cz -all
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