Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
uzis.cz
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-14 08:38:32 UTC · ↺ Refresh
MX Hostnames
- uzis-cz.l-v1.mx.microsoft
MX Priorities
- uzis-cz.l-v1.mx.microsoft: 10
A / AAAA Records
- 193.16.104.139 (no PTR)
Mail Server IPs
- 52.101.73.12 ↩ mail-am4pr0401cu00104.inbound.protection.outlook.com
- 52.101.68.29 ↩ mail-dbapr03cu00105.inbound.protection.outlook.com
- 52.101.73.6 ↩ mail-am6pr04cu00306.inbound.protection.outlook.com
- 52.101.73.2 ↩ mail-as9pr07cu00302.inbound.protection.outlook.com
- 2a01:111:f403:ca04::1 ↩ mail-db7pr03cu00401.inbound.protection.outlook.com
- 2a01:111:f403:ca04::6 ↩ mail-db4pr02cu00406.inbound.protection.outlook.com
- 2a01:111:f403:ca09::4 ↩ mail-am0pr04cu00504.inbound.protection.outlook.com
- 2a01:111:f403:ca09::1 ↩ mail-as9pr07cu00301.inbound.protection.outlook.com
SOA Record
Raw SOA
kasel.mzcr.cz hostmaster.mzcr.cz 2026031202 43200 7200 1800000 86400
Primary NS (mname)
kasel.mzcr.cz
Admin Email (rname)
hostmaster@mzcr.cz
Serial
2026031202
Refresh
43200s
Retry
7200s
Expire
1800000s
Minimum TTL
86400s
Nameservers (NS)
kasel.mzcr.cz
migrena.kcict.cz
SPF Record
✓ Soft Fail (~all)
v=spf1 mx a ip4:193.84.7.64/28 ip4:193.84.7.70 ip4:193.16.104.16 ip4:193.16.104.17 ip4:193.86.3.52 a:angina.mzcr.cz include:spf.protection.outlook.com include:servers.mcsv.net ~all
📊 DNS lookups: 5/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]; adkim=r; aspf=r; pct=100; rf=afrf; ri=86400
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 4 found
selector1._domainkey
selector2._domainkey
mail._domainkey
k1._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: selector1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
3 records- VWr9tRgBQqKNfNYIkomXAU2jVGGjOawvR5TXWwhtXDCJZI14sJWwMZewL68ee2JvSrTcxf4+QTB2ET/sFnsKCA==
- MS=ms72307311
- SPFv=spf1 mx a ip4:193.84.7.64/28 ip4:193.84.7.70 ip4:193.16.104.16 ip4:193.16.104.17 ip4:193.86.3.52 a:angina.mzcr.cz include:spf.protection.outlook.com include:servers.mcsv.net ~all
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