Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
vucfyn.dk
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-15 06:00:22 UTC · ↺ Refresh
MX Hostnames
- mx2-dk.centerasecurity.dk
- mx3-dk.centerasecurity.dk
- vucfyn-dk.mail.protection.outlook.com
- mx1-dk.centerasecurity.dk
MX Priorities
- mx3-dk.centerasecurity.dk: 30
- mx2-dk.centerasecurity.dk: 20
- mx1-dk.centerasecurity.dk: 10
- vucfyn-dk.mail.protection.outlook.com: 90
A / AAAA Records
- 52.178.24.186
Mail Server IPs
- 89.233.19.129 ↩ mx14.centerasecurity.dk
- 128.76.60.187 ↩ mx6.centerasecurity.dk
- 128.76.60.168 ↩ mx6.centerasecurity.dk
- 89.233.19.128 ↩ mx14.centerasecurity.dk
- 128.76.60.169 ↩ mx6.centerasecurity.dk
- 89.233.19.188 ↩ mx14.centerasecurity.dk
- 89.233.19.127 ↩ mx14.centerasecurity.dk
- 128.76.60.167 ↩ mx6.centerasecurity.dk
- 52.101.68.21 ↩ mail-db4pr02cu00205.inbound.protection.outlook.com
- 52.101.73.11 ↩ mail-am1pr04cu00103.inbound.protection.outlook.com
- 52.101.73.22
- 52.101.68.12
- 2a01:111:f403:ca04::4
- 2a01:111:f403:ca09::d
- 2a01:111:f403:ca04::1
- 2a01:111:f403:ca09::5
SOA Record
Raw SOA
ns01.one.com hostmaster.one.com 2025092601 14400 3600 1209600 600
Primary NS (mname)
ns01.one.com
Admin Email (rname)
hostmaster@one.com
Serial
2025092601
Refresh
14400s
Retry
3600s
Expire
1209600s
Minimum TTL
600s
Nameservers (NS)
ns01.one.com
ns02.one.com
SPF Record
✓ Strict (-all)
v=spf1 ip4:5.179.83.107 ip4:87.48.163.29 include:spf.protection.outlook.com include:spf.mailanyone.net include:spf.mcb.dk include:_spf.centerasecurity.dk include:sendgrid.net a:shop.vucfyn.dk -all
📊 DNS lookups: 6/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected],mailto:[email protected];
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected],mailto:[email protected]
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._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
8 records- 241f811k737sq6j99yd6xxs69hg9lgt5
- ZsgLJ5wDETngYnR02dDSybiWoEARTSEavtbkyif0jBpFvO6in/iBJhh2c4IS6f41VsHGjdYPY6aR7tG2JKW2UQ==
- f1nfov7oaf7r8u51an9oodtpg8
- 9td7g52u1lm5usqinfpkc987km
- inst=Vuc -Fjernundervisningsprojekt - Fyns Amt
- SPFv=spf1 ip4:5.179.83.107 ip4:87.48.163.29 include:spf.protection.outlook.com include:spf.mailanyone.net include:spf.mcb.dk include:_spf.centerasecurity.dk include:sendgrid.net a:shop.vucfyn.dk -all
- iqgnsl2mu0j8r9mm1k1nl6t42v
- apple-domain-verification=qwlOWK1Yq3GGv9Nt
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