Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
porthosp.nhs.uk
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-30 05:37:58 UTC · ↺ Refresh
MX Hostnames
- mail.nhs.uk
MX Priorities
- mail.nhs.uk: 50
A / AAAA Records
- 45.145.100.93 ↩ 45.145.100.93.srvlist.ukfast.net
Mail Server IPs
- 155.231.208.128 ↩ mail2.nhs.net
SOA Record
Raw SOA
ns1.nhs.uk hostmaster.nominet.uk 2025100701 10800 3600 604800 3600
Primary NS (mname)
ns1.nhs.uk
Admin Email (rname)
hostmaster@nominet.uk
Serial
2025100701
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns4.nhs.uk
ns1.nhs.uk
ns2.nhs.uk
ns3.nhs.uk
SPF Record
✓ Strict (-all)
v=spf1 include:_spf.nhs.net include:spf.protection.outlook.com include:mailgun.org ip4:85.91.40.10 ip4:194.168.216.115 ip4:194.189.201.249 ip4:194.189.200.10 -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; adkim=r; aspf=r; fo=1; 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
✓ 3 found
selector1._domainkey
selector2._domainkey
default._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
6 records- citrix.mobile.ads.otp=sg9iaqmkdof8txfv91cvk
- 9+S+QcmlHMOj5m4UdWRs5s/9tVaUDDOcrMCcjUg/xIUCkbBhYiDGGSdKNGXlddS+1kxYYaBFDtGv6jMqkbJjnw==
- cisco-ci-domain-verification=43a9e9d36f1bbbf447d6e3f4d847c95b772ee75d66e8971ba4b33dfd79c374e9
- SPFv=spf1 include:_spf.nhs.net include:spf.protection.outlook.com include:mailgun.org ip4:85.91.40.10 ip4:194.168.216.115 ip4:194.189.201.249 ip4:194.189.200.10 -all
- mtdhbld3a48bq81vdbcs08dtv3
- apple-domain-verification=TSTYVaAK45NOSzHN
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