Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
alphaint.cz
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-21 18:25:37 UTC · ↺ Refresh
MX Hostnames
- mx03.hornetsecurity.com
- mx04.hornetsecurity.com
- mx01.hornetsecurity.com
- mx02.hornetsecurity.com
MX Priorities
- mx03.hornetsecurity.com: 15
- mx02.hornetsecurity.com: 10
- mx04.hornetsecurity.com: 20
- mx01.hornetsecurity.com: 5
A / AAAA Records
- 178.238.38.14 (no PTR)
- 2a01:430:45::14 (no PTR)
Mail Server IPs
- 94.100.134.8 ↩ mx03.hornetsecurity.com
- 94.100.136.8 ↩ mx02.hornetsecurity.com
- 94.100.136.7 ↩ mx04.hornetsecurity.com
- 94.100.132.8 ↩ mx01.hornetsecurity.com
SOA Record
Raw SOA
nsa.aira.cz hostmaster.aira.cz 2024123001 7200 180 4838400 3600
Primary NS (mname)
nsa.aira.cz
Admin Email (rname)
hostmaster@aira.cz
Serial
2024123001
Refresh
7200s
Retry
180s
Expire
4838400s
Minimum TTL
3600s
Nameservers (NS)
nsc.aira.cz
nsa.aira.cz
nsb.aira.cz
SPF Record
✓ Strict (-all)
v=spf1 include:spf.aira.cz include:spf.hornetsecurity.com include:spf.protection.outlook.com mx a -all
📊 DNS lookups: 5/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1;p=quarantine;sp=reject;pct=100;rua=mailto:[email protected];ruf=mailto:[email protected];ri=86400;aspf=r;fo=1
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: reject
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
2 records- MS=ms53274747
- SPFv=spf1 include:spf.aira.cz include:spf.hornetsecurity.com include:spf.protection.outlook.com mx a -all
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