Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
fco.gov.uk
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-22 23:22:47 UTC · ↺ Refresh
MX Hostnames
- fco-gov-uk.mail.protection.outlook.com
MX Priorities
- fco-gov-uk.mail.protection.outlook.com: 10
A / AAAA Records
- 151.101.130.30 (no PTR)
- 151.101.66.30 (no PTR)
- 151.101.2.30 (no PTR)
- 151.101.194.30 (no PTR)
Mail Server IPs
- 52.101.73.28 ↩ mail-am7pr05cu00204.inbound.protection.outlook.com
- 52.101.68.32 ↩ mail-db3pr0202cu00200.inbound.protection.outlook.com
- 52.101.73.19 ↩ mail-as8pr04cu00803.inbound.protection.outlook.com
- 52.101.68.15 ↩ mail-db6pr03cu00107.inbound.protection.outlook.com
SOA Record
Raw SOA
nautilus.fco.gov.uk hostmaster.fco.gov.uk 3274 10800 3600 604800 86400
Primary NS (mname)
nautilus.fco.gov.uk
Admin Email (rname)
hostmaster@fco.gov.uk
Serial
3274
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
86400s
Nameservers (NS)
nautilus.fco.gov.uk
snowcone.fco.gov.uk
columbus.fco.gov.uk
SPF Record
✓ Strict (-all)
v=spf1 include:_spf-a.fco.gov.uk include:spf.protection.outlook.com -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1;p=reject;sp=reject;fo=1;rua=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]
↳ Subdomain policy: reject
DKIM Selectors
✓ 5 found
selector1._domainkey
selector2._domainkey
mail._domainkey
s1._domainkey
s2._domainkey
✓ DKIM properly configured for selector: selector1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
7 records- s0hudt01qc0qs09eqn7aon94f3
- MS=ms81948222
- apple-domain-verification=X1Y4IzXOpWfYXE67
- SPFv=spf1 include:_spf-a.fco.gov.uk include:spf.protection.outlook.com -all
- X0SzPf5m5cDJbGTiVjAP57xdwEgUq9baqryxQdZRFEI=
- _globalsign-domain-verification=t0_Iy2xgModAaHlTc6gvRp7Sb-pQyd-Oi-F8BrYatp
- autodesk-domain-verification=VE4s7oNICEvpgaSWo7p7
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