Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
ceb.cz
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-14 03:08:35 UTC · ↺ Refresh
MX Hostnames
- ceb-cz.mail.protection.outlook.com
MX Priorities
- ceb-cz.mail.protection.outlook.com: 50
A / AAAA Records
- 62.109.154.158 ↩ vps1209.webglobe.com
- 2001:1ab0:7e1e:151:62:109:154:158 ↩ vps1209.webglobe.com
Mail Server IPs
- 52.101.73.24 ↩ mail-as8pr05cu00300.inbound.protection.outlook.com
- 52.101.68.25 ↩ mail-db8pr02cu00101.inbound.protection.outlook.com
- 52.101.68.32 ↩ mail-db3pr0202cu00200.inbound.protection.outlook.com
- 52.101.73.1 ↩ mail-am3pr04cu00501.inbound.protection.outlook.com
- 2a01:111:f403:ca09::b ↩ mail-am7pr05cu00103.inbound.protection.outlook.com
- 2a01:111:f403:ca04::2 ↩ mail-du2pr03cu00102.inbound.protection.outlook.com
- 2a01:111:f403:ca04::a ↩ mail-du0pr03cu00102.inbound.protection.outlook.com
- 2a01:111:f403:ca09::8 ↩ mail-as2pr05cu00100.inbound.protection.outlook.com
SOA Record
Raw SOA
ns.eunet.cz hostmaster.cz.net 2026011609 28800 7200 604800 86400
Primary NS (mname)
ns.eunet.cz
Admin Email (rname)
hostmaster@cz.net
Serial
2026011609
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
86400s
Nameservers (NS)
nic.eunet.cz
ns.eunet.cz
SPF Record
✓ Strict (-all)
v=spf1 mx ip4:116.203.95.131 ip6:2a01:4f8:c2c:be5::1 include:spf.protection.outlook.com include:spfa.cpmails.com -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 564 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
5 records- MS=ms25398530
- SPFv=spf1 mx ip4:116.203.95.131 ip6:2a01:4f8:c2c:be5::1 include:spf.protection.outlook.com include:spfa.cpmails.com -all
- MS=B08EDE66CCDD0885F7735A5E6C598B61B957A601
- cisco-ci-domain-verification=760176f0a5a5113b9c9a59b6b70a3a755e8f87d803ec8417e149bcc6fb19f553
- apple-domain-verification=vNsIeUyVKF1Y3bzM
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