Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
gstt.nhs.uk
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-18 09:46:36 UTC · ↺ Refresh
MX Hostnames
- mail.nhs.uk
MX Priorities
- mail.nhs.uk: 50
A / AAAA Records
- 52.211.85.12 ↩ ec2-52-211-85-12.eu-west-1.compute.amazonaws.com
Mail Server IPs
- 155.231.208.2 ↩ mail1.nhs.net
SOA Record
Raw SOA
ns1.nhs.uk hostmaster.nominet.uk 2026031606 10800 3600 604800 3600
Primary NS (mname)
ns1.nhs.uk
Admin Email (rname)
hostmaster@nominet.uk
Serial
2026031606
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns3.nhs.uk
ns4.nhs.uk
ns1.nhs.uk
ns2.nhs.uk
SPF Record
✓ Soft Fail (~all)
v=spf1 ip4:217.72.254.250 ip4:85.133.123.250 include:_spf.nhs.net include:mailgun.org ~all
📊 DNS lookups: 2/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected]; ruf=mailto:[email protected]; aspf=s; adkim=s
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Strict
· DKIM alignment: Strict
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 2 found
s1._domainkey
s2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: s1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
9 records- apple-domain-verification=57ihHGRYjNeQVib1
- google-site-verification=hdMSfjYWdAZA-ZGf-6A2Lo6xCcctLPzFpDABLk3KdEk
- pexip-portal-domain-verification=fc360c4d-0af0-4456-88a4-d8d2c74c93ac
- pexip-ms-tenant-domain-verification=value1,fc360c4d-0af0-4456-88a4-d8d2c74c93ac
- YT1sQHg806hGuJH3wvtjDFbGFnDTo6t1/sDALNkt7GhN+XPGxmUzxm0Lbnh4y55Um2UiCR1YgZrMZN4thsf0yA==
- SPFv=spf1 ip4:217.72.254.250 ip4:85.133.123.250 include:_spf.nhs.net include:mailgun.org ~all
- MS=ms74794827
- ZA=pol7HMSI1OxcDxfXaZB4WQ==
- 2V61T36PPB90HBEELUYWY334Y5UQEKXEYDCMKU4G
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