Live data — DNS records and disposable check were just fetched and saved.
Domain Overview
DNS: ⚡ live
Checker: ⚡ live
dou.dk
No
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-10-29 14:15:36 UTC · ↺ Refresh
MX Hostnames
MX Priorities
- : 0
A / AAAA Records
- 130.225.156.23 (no PTR)
Mail Server IPs
No IPs resolved.
SOA Record
Raw SOA
ns1.sdu.dk dns.it-service.sdu.dk 2011051166 43200 3600 604800 3600
Primary NS (mname)
ns1.sdu.dk
Admin Email (rname)
dns@it-service.sdu.dk
Serial
2011051166
Refresh
43200s
Retry
3600s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns2.sdu.dk
ns3.sdu.dk
ns1.sdu.dk
SPF Record
✗ Invalid
v=spf1 -all
📊 DNS lookups: 0/10
⚠ Strict -all with no allowed senders — no servers can send email for this domain.
DMARC Record
✓ Reject
v=DMARC1; p=reject; sp=reject; rua=mailto:[email protected]; ruf=mailto:[email protected]
✓ Reject — strongest protection
📋 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=ms22994458
- SPFv=spf1 -all
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