Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
fcdo.gov.uk
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-04-02 00:58:39 UTC · ↺ Refresh
MX Hostnames
- fcdo-gov-uk.mail.protection.outlook.com
MX Priorities
- fcdo-gov-uk.mail.protection.outlook.com: 10
A / AAAA Records
No A/AAAA records found.
Mail Server IPs
- 52.101.73.22 ↩ mail-am7pr05cu00106.inbound.protection.outlook.com
- 52.101.73.11 ↩ mail-am1pr04cu00103.inbound.protection.outlook.com
- 52.101.68.10 ↩ mail-dbbpr03cu00102.inbound.protection.outlook.com
- 52.101.68.39 ↩ mail-db7pr03cu00607.inbound.protection.outlook.com
SOA Record
Raw SOA
nautilus.fco.gov.uk hostmaster.fco.gov.uk 947 900 600 86400 3600
Primary NS (mname)
nautilus.fco.gov.uk
Admin Email (rname)
hostmaster@fco.gov.uk
Serial
947
Refresh
900s
Retry
600s
Expire
86400s
Minimum TTL
3600s
Nameservers (NS)
snowcone.fco.gov.uk
nautilus.fco.gov.uk
columbus.fco.gov.uk
SPF Record
✓ Strict (-all)
v=spf1 include:_spf-a.fcdo.gov.uk include:spf.protection.outlook.com include:_spf.salesforce.com -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1;p=reject;sp=reject;fo=1;rua=mailto:[email protected],mailto:[email protected],mailto:[email protected];ruf=mailto:[email protected]
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected],mailto:[email protected],mailto:[email protected]
↳ Subdomain policy: reject
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
9 records- autodesk-domain-verification=TIhJgmM0SJGEvNQPdcXu
- autodesk-domain-verification=Cn50AyJ9S0PhaPANMyKj
- MS=769FD5BE66EBB1E3D651F7AC37B5576F146BF8A3
- _globalsign-domain-verification=sFyRpr3x_yQWL0yNxsdpJYXzjCcravSheY9E2WuN_a
- apple-domain-verification=NsDqp6AmLVnFw9T8
- MS=ms53374932
- atlassian-domain-verification=gcgx3UTSMdJGb7Z8DznL9hriJtszhyYHHqc5mRXc//9GVU2FBEwBKUv7sgVG0z18
- SPFv=spf1 include:_spf-a.fcdo.gov.uk include:spf.protection.outlook.com include:_spf.salesforce.com -all
- atlassian-domain-verification=bZGO5uhtd4WhMOtOa7PybuOKPn3INN3xbf8op38InI511aiavDa308d5p2wTRkmT
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