Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
cco.as
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-18 17:11:58 UTC · ↺ Refresh
MX Hostnames
- cco-as.mail.protection.outlook.com
MX Priorities
- cco-as.mail.protection.outlook.com: 0
A / AAAA Records
- 94.231.106.152 ↩ linux212.curanet.dk
Mail Server IPs
- 52.101.73.19 ↩ mail-as8pr04cu00803.inbound.protection.outlook.com
- 52.101.68.10 ↩ mail-dbbpr03cu00102.inbound.protection.outlook.com
- 52.101.68.32 ↩ mail-db3pr0202cu00200.inbound.protection.outlook.com
- 52.101.73.15 ↩ mail-am9pr04cu00107.inbound.protection.outlook.com
- 2a01:111:f403:ca04::d ↩ mail-db6pr03cu00105.inbound.protection.outlook.com
- 2a01:111:f403:ca04::6 ↩ mail-db4pr02cu00406.inbound.protection.outlook.com
- 2a01:111:f403:ca09::1 ↩ mail-as9pr07cu00301.inbound.protection.outlook.com
- 2a01:111:f403:ca04::b ↩ mail-dbbpr03cu00103.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1.curanet.dk hostmaster.curanet.dk 2025080601 14400 3600 1209600 300
Primary NS (mname)
ns1.curanet.dk
Admin Email (rname)
hostmaster@curanet.dk
Serial
2025080601
Refresh
14400s
Retry
3600s
Expire
1209600s
Minimum TTL
300s
Nameservers (NS)
ns2.curanet.dk
ns1.curanet.dk
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com ip4:178.249.49.100 include:sendgrid.net -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1;
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 4 found
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._domainkey
✓ Public key: 392 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
2 records- _x2ifu5mnncz1z3fq3azd2bc51wwqywp
- SPFv=spf1 include:spf.protection.outlook.com ip4:178.249.49.100 include:sendgrid.net -all
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